KazzLabs


Pythagoras
Pythagorean theorem in practice

Definitions of variables in the right triangleRight triangle assembly errorsDefinition of Unity Distance variable D1

3. Calculation of the right triangle taking into account measurement errors and clearances.

Enter minimum and maximum values of a and b in range from 1 to 9999 and desired accuracy in range from 0,00001 to 0,9 and click "Submit" button.

Maximum 100000 calculations (on the server side) will be performed and only the first 5000 results will be displayed.
Click on column label to change sorting. Rows marked with color are Pythagorean triples.



abcΔ c ↑α90°max Δ90°D1(max Δ90°)
345036.8699°90.0000°0.2873°200
435053.1301°90.0000°0.2873°200
51213022.6199°90.0000°0.1434°400
6810036.8699°90.0000°0.1434°400
72425016.2602°90.0000°0.0956°600
8610053.1301°90.0000°0.1434°400
81517028.0725°90.0000°0.0956°600
91215036.8699°90.0000°0.0956°600
94041012.6804°90.0000°0.0717°800
102426022.6199°90.0000°0.0717°800
116061010.3889°90.0000°0.0573°1 000
12513067.3801°90.0000°0.1434°400
12915053.1301°90.0000°0.0956°600
121620036.8699°90.0000°0.0717°800
123537018.9246°90.0000°0.0573°1 000
144850016.2602°90.0000°0.0478°1 200
15817061.9275°90.0000°0.0956°600
152025036.8699°90.0000°0.0573°1 000
153639022.6199°90.0000°0.0478°1 200
161220053.1301°90.0000°0.0717°800
163034028.0725°90.0000°0.0478°1 200
166365014.2500°90.0000°0.0409°1 400
182430036.8699°90.0000°0.0478°1 200
188082012.6804°90.0000°0.0358°1 600
201525053.1301°90.0000°0.0573°1 000
202129043.6028°90.0000°0.0478°1 200
204852022.6199°90.0000°0.0358°1 600
2099101011.4212°90.0000°0.0318°1 800
212029046.3972°90.0000°0.0478°1 200
212835036.8699°90.0000°0.0409°1 400
217275016.2602°90.0000°0.0318°1 800
24725073.7398°90.0000°0.0956°600
241026067.3801°90.0000°0.0717°800
241830053.1301°90.0000°0.0478°1 200
243240036.8699°90.0000°0.0358°1 600
244551028.0725°90.0000°0.0318°1 800
247074018.9246°90.0000°0.0287°2 000
256065022.6199°90.0000°0.0287°2 000
273645036.8699°90.0000°0.0318°1 800
282135053.1301°90.0000°0.0409°1 400
284553031.8908°90.0000°0.0287°2 000
2896100016.2602°90.0000°0.0239°2 400
301634061.9275°90.0000°0.0478°1 200
304050036.8699°90.0000°0.0287°2 000
307278022.6199°90.0000°0.0239°2 400
322440053.1301°90.0000°0.0358°1 600
326068028.0725°90.0000°0.0239°2 400
334455036.8699°90.0000°0.0260°2 200
335665030.5102°90.0000°0.0239°2 400
351237071.0754°90.0000°0.0573°1 000
358491022.6199°90.0000°0.0205°2 800
361539067.3801°90.0000°0.0478°1 200
362745053.1301°90.0000°0.0318°1 800
364860036.8699°90.0000°0.0239°2 400
367785025.0576°90.0000°0.0205°2 800
395265036.8699°90.0000°0.0220°2 600
398089025.9892°90.0000°0.0191°3 000
40941077.3196°90.0000°0.0717°800
403050053.1301°90.0000°0.0287°2 000
404258043.6028°90.0000°0.0239°2 400
407585028.0725°90.0000°0.0191°3 000
4096104022.6199°90.0000°0.0179°3 200
424058046.3972°90.0000°0.0239°2 400
425670036.8699°90.0000°0.0205°2 800
443355053.1301°90.0000°0.0260°2 200
452451061.9275°90.0000°0.0318°1 800
452853058.1092°90.0000°0.0287°2 000
456075036.8699°90.0000°0.0191°3 000
481450073.7398°90.0000°0.0478°1 200
482052067.3801°90.0000°0.0358°1 600
483660053.1301°90.0000°0.0239°2 400
485573041.1121°90.0000°0.0191°3 000
486480036.8699°90.0000°0.0179°3 200
4890102028.0725°90.0000°0.0159°3 600
516885036.8699°90.0000°0.0169°3 400
523965053.1301°90.0000°0.0220°2 600
547290036.8699°90.0000°0.0159°3 600
554873048.8879°90.0000°0.0191°3 000
563365059.4898°90.0000°0.0239°2 400
564270053.1301°90.0000°0.0205°2 800
5690106031.8908°90.0000°0.0143°4 000
577695036.8699°90.0000°0.0151°3 800
601161079.6111°90.0000°0.0573°1 000
602565067.3801°90.0000°0.0287°2 000
603268061.9275°90.0000°0.0239°2 400
604575053.1301°90.0000°0.0191°3 000
606387043.6028°90.0000°0.0159°3 600
6080100036.8699°90.0000°0.0143°4 000
6091109033.3985°90.0000°0.0136°4 200
631665075.7500°90.0000°0.0409°1 400
636087046.3972°90.0000°0.0159°3 600
6384105036.8699°90.0000°0.0136°4 200
644880053.1301°90.0000°0.0179°3 200
657297042.0750°90.0000°0.0143°4 000
6688110036.8699°90.0000°0.0130°4 400
685185053.1301°90.0000°0.0169°3 400
6992115036.8699°90.0000°0.0125°4 600
702474071.0754°90.0000°0.0287°2 000
722175073.7398°90.0000°0.0318°1 800
723078067.3801°90.0000°0.0239°2 400
725490053.1301°90.0000°0.0159°3 600
726597047.9250°90.0000°0.0143°4 000
7296120036.8699°90.0000°0.0119°4 800
754085061.9275°90.0000°0.0191°3 000
75100125036.8699°90.0000°0.0115°5 000
765795053.1301°90.0000°0.0151°3 800
773685064.9424°90.0000°0.0205°2 800
801882077.3196°90.0000°0.0358°1 600
803989064.0108°90.0000°0.0191°3 000
8060100053.1301°90.0000°0.0143°4 000
8084116043.6028°90.0000°0.0119°4 800
843591067.3801°90.0000°0.0205°2 800
8463105053.1301°90.0000°0.0136°4 200
8480116046.3972°90.0000°0.0119°4 800
8866110053.1301°90.0000°0.0130°4 400
9048102061.9275°90.0000°0.0159°3 600
9056106058.1092°90.0000°0.0143°4 000
9160109056.6015°90.0000°0.0136°4 200
9269115053.1301°90.0000°0.0125°4 600
9628100073.7398°90.0000°0.0239°2 400
9640104067.3801°90.0000°0.0179°3 200
9672120053.1301°90.0000°0.0119°4 800
9920101078.5788°90.0000°0.0318°1 800
10075125053.1301°90.0000°0.0115°5 000
91971330.003843.1736°89.9968°0.0137°4 194
97911330.003846.8297°89.9968°0.0137°4 194
89921280.003944.0521°89.9965°0.0143°4 005
92891280.003945.9514°89.9965°0.0143°4 005
73991230.004136.4055°89.9960°0.0157°3 660
99731230.004153.5985°89.9960°0.0157°3 660
74971220.004137.3410°89.9960°0.0157°3 654
97741220.004152.6630°89.9960°0.0157°3 654
79891190.004241.5954°89.9959°0.0158°3 635
89791190.004248.4087°89.9959°0.0158°3 635
70951180.004236.3859°89.9957°0.0165°3 473
95701180.004253.6184°89.9957°0.0165°3 473
71931170.004337.3612°89.9957°0.0165°3 467
93711170.004352.6431°89.9957°0.0165°3 467
67911130.004436.3645°89.9953°0.0174°3 288
91671130.004453.6402°89.9953°0.0174°3 288
56971120.004530.0000°89.9947°0.0192°2 977
68891120.004537.3832°89.9953°0.0175°3 281
89681120.004552.6215°89.9953°0.0175°3 281
97561120.004560.0053°89.9947°0.0192°2 977
64871080.004636.3412°89.9949°0.0185°3 103
87641080.004653.6639°89.9949°0.0185°3 103
65851070.004737.4073°89.9948°0.0185°3 096
85651070.004752.5979°89.9948°0.0185°3 096
49941060.004727.5333°89.9938°0.0217°2 640
94491060.004762.4729°89.9938°0.0217°2 640
35991050.004819.4712°89.9917°0.0280°2 045
99351050.004870.5370°89.9917°0.0280°2 045
321001050.004817.7438°90.0090°0.0302°1 899
68801050.004840.3623°90.0053°0.0186°3 082
80681050.004849.6324°90.0053°0.0186°3 082
100321050.004872.2472°90.0090°0.0302°1 899
71761040.004843.0544°89.9947°0.0186°3 076
76711040.004846.9509°89.9947°0.0186°3 076
61831030.004936.3156°89.9943°0.0196°2 919
83611030.004953.6900°89.9943°0.0196°2 919
62811020.004937.4337°89.9943°0.0197°2 912
81621020.004952.5720°89.9943°0.0197°2 912
65761000.005040.5416°89.9942°0.0198°2 898
76651000.005049.4642°89.9942°0.0198°2 898
3991990.005123.1998°89.9919°0.0266°2 158
6971990.005144.1844°89.9942°0.0198°2 891
7169990.005145.8215°89.9942°0.0198°2 891
9139990.005166.8082°89.9919°0.0266°2 158
7070990.005144.9971°90.0058°0.0198°2 891
4786980.005128.6587°89.9929°0.0235°2 443
5879980.005136.2875°89.9937°0.0209°2 736
7958980.005153.7188°89.9937°0.0209°2 736
8647980.005161.3483°89.9929°0.0235°2 443
5977970.005237.4629°89.9937°0.0210°2 729
7759970.005252.5434°89.9937°0.0210°2 729
3689960.005222.0243°89.9911°0.0287°1 997
8936960.005267.9846°89.9911°0.0287°1 997
2789930.005416.8773°89.9881°0.0368°1 556
5575930.005436.2563°89.9931°0.0224°2 555
7555930.005453.7507°89.9931°0.0224°2 555
8927930.005473.1347°89.9881°0.0368°1 556
5673920.005437.4952°89.9930°0.0225°2 548
7356920.005452.5118°89.9930°0.0225°2 548
1989910.005512.0515°89.9831°0.0506°1 132
8919910.005577.9654°89.9831°0.0506°1 132
4179890.005627.4306°89.9912°0.0273°2 097
7941890.005662.5782°89.9912°0.0273°2 097
5271880.005736.2215°89.9922°0.0241°2 375
7152880.005753.7862°89.9922°0.0241°2 375
5369870.005737.5313°89.9922°0.0242°2 368
6953870.005752.4765°89.9922°0.0242°2 368
3479860.005823.2877°89.9893°0.0319°1 798
7934860.005866.7229°89.9893°0.0319°1 798
3177830.006021.9313°89.9880°0.0349°1 641
4371830.006031.2030°89.9906°0.0279°2 057
4967830.006036.1827°89.9913°0.0261°2 197
6749830.006053.8261°89.9913°0.0261°2 197
7143830.006058.8064°89.9906°0.0279°2 057
7731830.006068.0807°89.9880°0.0349°1 641
2279820.006115.5627°89.9835°0.0466°1 229
5065820.006137.5719°89.9912°0.0262°2 189
6550820.006152.4369°89.9912°0.0262°2 189
7922820.006174.4538°89.9835°0.0466°1 229
3971810.006228.7822°89.9897°0.0301°1 904
7139810.006261.2281°89.9897°0.0301°1 904
2876810.006220.2233°90.0135°0.0384°1 493
4468810.006232.9024°90.0096°0.0281°2 042
6844810.006257.0880°90.0096°0.0281°2 042
7628810.006269.7633°90.0135°0.0384°1 493
2576800.006218.2100°89.9849°0.0424°1 353
7625800.006271.8051°89.9849°0.0424°1 353
4663780.006436.1388°89.9901°0.0284°2 020
6346780.006453.8711°89.9901°0.0284°2 020
4761770.006537.6177°89.9900°0.0285°2 013
6147770.006552.3923°89.9900°0.0285°2 013
4164760.006632.6478°89.9891°0.0307°1 868
6441760.006657.3631°89.9891°0.0307°1 868
5155750.006742.8436°89.9898°0.0287°1 997
5551750.006747.1666°89.9898°0.0287°1 997
1771730.006813.4665°89.9763°0.0619°926
2967730.006823.4070°89.9853°0.0397°1 445
4359730.006836.0890°89.9887°0.0310°1 846
5943730.006853.9223°89.9887°0.0310°1 846
6729730.006866.6077°89.9853°0.0397°1 445
7117730.006876.5572°89.9763°0.0619°926
3364720.006927.2796°89.9864°0.0365°1 571
4457720.006937.6699°89.9886°0.0312°1 838
5744720.006952.3415°89.9886°0.0312°1 838
6433720.006962.7340°89.9864°0.0365°1 571
2665700.007121.8037°89.9830°0.0442°1 296
4950700.007144.4270°89.9883°0.0314°1 822
5049700.007145.5847°89.9883°0.0314°1 822
6526700.007168.2132°89.9830°0.0442°1 296
99991400.007145.0029°89.9942°0.0157°3 644
2065680.007417.1046°89.9780°0.0557°1 028
2364680.007419.7694°89.9805°0.0496°1 155
4055680.007436.0319°89.9870°0.0342°1 674
5540680.007453.9811°89.9870°0.0342°1 674
6423680.007470.2501°89.9805°0.0496°1 155
6520680.007472.9174°89.9780°0.0557°1 028
4153670.007537.7299°89.9868°0.0344°1 666
5341670.007552.2833°89.9868°0.0344°1 666
3156640.007828.9715°89.9835°0.0414°1 384
5631640.007861.0450°89.9835°0.0414°1 384
3751630.007935.9658°89.9848°0.0381°1 504
5137630.007954.0494°89.9848°0.0381°1 504
85931260.007942.4233°90.0072°0.0183°3 137
93851260.007947.5694°90.0072°0.0183°3 137
3849620.008137.7997°89.9846°0.0383°1 496
4938620.008152.2157°89.9846°0.0383°1 496
2455600.008323.5782°89.9783°0.0519°1 105
5524600.008366.4435°89.9783°0.0519°1 105
3447580.008635.8883°89.9821°0.0428°1 338
4734580.008654.1296°89.9821°0.0428°1 338
1555570.008815.2575°89.9653°0.0788°728
2153570.008821.6183°89.9743°0.0594°964
3545570.008837.8818°89.9818°0.0431°1 330
4535570.008852.1363°89.9818°0.0431°1 330
5321570.008868.4075°89.9743°0.0594°964
5515570.008874.7772°89.9653°0.0788°728
63951140.008833.5477°90.0096°0.0226°2 536
95631140.008856.4427°90.0096°0.0226°2 536
2549550.009127.0357°89.9766°0.0535°1 071
4925550.009162.9877°89.9766°0.0535°1 071
3143530.009435.7963°89.9785°0.0488°1 175
4331530.009454.2252°89.9785°0.0488°1 175
47951060.009426.3208°90.0128°0.0287°1 993
95471060.009463.6664°90.0128°0.0287°1 993
3241520.009637.9799°89.9782°0.0491°1 167
4132520.009652.0420°89.9782°0.0491°1 167
57871040.009633.2352°89.9884°0.0259°2 215
87571040.009656.7764°89.9884°0.0259°2 215
1050510.009811.3077°90.0573°0.1210°474
2246510.009825.5547°90.0283°0.0620°924
3438510.009841.8103°90.0222°0.0495°1 159
3834510.009848.1675°90.0222°0.0495°1 159
4622510.009864.4170°90.0283°0.0620°924
5010510.009878.6350°90.0573°0.1210°474
1049500.010011.5370°89.9415°0.1221°470
4910500.010078.5215°89.9415°0.1221°470
# = 280
Checked 9801 combinations
Description:

a, b, c: sides of the triangle

max Δ(a,b,c): desired accuracy of dimensions

Δc: difference between calculated and approximated value of c

α: calculated value of angle α assuming exact dimensions

90°: calculated value of 90° angle assuming exact dimensions

max Δ90°: maximal error of 90° angle

D1(max Δ90°): unity distance at angle (max Δ90°), helps to better understand small angles size

For example enter 2 ≤ a ≤ 100, 2 ≤ b ≤ 100, and max Δ of 0.01. Suppose dimensions are in centimeters, so accuracy of 0.1mm is quite good. Sort by max Δ90° descending ↓

Look at the results. First result (3,4,5) is an Pitagorean triple, but due to dimension deviation of 0.1mm, the maximum 90° angle error is 0.2873°, that's a pretty big error. This can be visualised as 1 meter viewed form 200 meters (or 1 centimeter viewed form 200 cm).

Better results are for triples (6,8,10) and (5,12,13) → max error equals 0.1434°.

It is interesting that triples (10,49,50) and (10,50,51) which do not satisfy the equation a²+b²=c², gives smaller maximum angle error than next Pitagorean triples (9,12,15) and (8,15,17).

This is because of the bigger values of a, b and c in this case, so relative accuracy is better.

As you can see in the table, there are surprisingly many non-Pitagorean triples, which can nevertheless be used as the lengths of the right triangle sides.

In the length range 2-200 the best results are given by the Pythagorean triple (180,189,261), but the triple (189,197,273) is only slightly worse.

Of course, the 90° angle error decreases with increasing dimensions and increasing accuracy (smaller Δ).

Knowing the effects of dimensional errors, we can optimally select the lengths of the triangle sides according to the required accuracy.

© Kazimierz Pomierny 2025-09-16