Equilateral Triangle

(the database of solved problems)

All the problems and solutions shown below were generated using the Equilateral Triangle Calculator.

Select category

ID	Problem	Count
401	Find the perimeter $ P $ of an equilateral triangle if altitude $h = 40\, \text{in}$.	2
402	Find the side $ a $ of an equilateral triangle if side $a = 2250\, \text{mm}$.	2
403	Find the area $ A $ of an equilateral triangle if side $a = 1\, \text{in}$.	2
404	Find the side $ a $ of an equilateral triangle if side $a = 11.83\, \text{mm}$.	2
405	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{mm}$ and altitude $h = 3\, \text{mm}$.	2
406	Find the side $ a $ of an equilateral triangle if altitude $h = 8 \sqrt{ 6 }\, \text{mm}$.	2
407	Find the side $ a $ of an equilateral triangle if altitude $h = 96\, \text{in}$.	2
408	Find the area $ A $ of an equilateral triangle if side $a = 4 \sqrt{ 3 }\, \text{in}$ and incircle radius $r = 2\, \text{in}$.	2
409	Find the altitude $ h $ of an equilateral triangle if side $a = 84\, \text{in}$.	2
410	Find the side $ a $ of an equilateral triangle if area $A = 25\, \text{ft}^2$.	2
411	Find the side $ a $ of an equilateral triangle if side $a = 47\, \text{mm}$.	2
412	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 47\, \text{mm}$.	2
413	Find the side $ a $ of an equilateral triangle if altitude $h = 0.5\, \text{in}$.	2
414	Find the side $ a $ of an equilateral triangle if altitude $h = 12\, \text{mm}$ and area $A = 120\, \text{mm}^2$.	2
415	Find the side $ a $ of an equilateral triangle if side $a = 30\, \text{mm}$.	2
416	Find the side $ a $ of an equilateral triangle if area $A = 58\, \text{cm}^2$.	2
417	Find the side $ a $ of an equilateral triangle if side $a = 60\, \text{in}$.	2
418	Find the altitude $ h $ of an equilateral triangle if side $a = 60\, \text{in}$.	2
419	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 60\, \text{in}$.	2
420	Find the area $ A $ of an equilateral triangle if altitude $h = 4 \sqrt{ 3 }\, \text{mm}$.	2
421	Find the perimeter $ P $ of an equilateral triangle if side $a = 8\, \text{mm}$, altitude $h = 4 \sqrt{ 3 }\, \text{mm}$ and area $A = 16 \sqrt{ 3 }\, \text{mm}^2$.	2
422	Find the perimeter $ P $ of an equilateral triangle if altitude $h = 4 \sqrt{ 3 }\, \text{mm}$.	2
423	Find the altitude $ h $ of an equilateral triangle if side $a = 49\, \text{in}$.	2
424	Find the side $ a $ of an equilateral triangle if side $a = 49\, \text{in}$.	2
425	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 171.5\, \text{mm}$.	2
426	Find the side $ a $ of an equilateral triangle if side $a = \sqrt{ 133 }\, \text{mm}$.	2
427	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 171.5\, \text{mm}$ and incircle radius $r = 133\, \text{mm}$.	2
428	Find the side $ a $ of an equilateral triangle if side $a = 15\, \text{cm}$.	2
429	Find the area $ A $ of an equilateral triangle if side $a = 1.22\, \text{m}$.	2
430	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{mm}$ and altitude $h = 5\, \text{mm}$.	2
431	Find the perimeter $ P $ of an equilateral triangle if circumcircle radius $R = 4\, \text{mm}$.	2
432	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 4\, \text{mm}$.	2
433	Find the altitude $ h $ of an equilateral triangle if side $a = 5\, \text{cm}$.	2
434	Find the side $ a $ of an equilateral triangle if side $a = 12\, \text{mm}$, perimeter $P = 12\, \text{mm}$ and circumcircle radius $R = 12\, \text{mm}$.	2
435	Find the area $ A $ of an equilateral triangle if side $a = 12\, \text{mm}$ and area $A = 12\, \text{mm}^2$.	2
436	Find the side $ a $ of an equilateral triangle if area $A = 99\, \text{mm}^2$.	2
437	Find the perimeter $ P $ of an equilateral triangle if circumcircle radius $R = 8\, \text{mm}$.	2
438	Find the side $ a $ of an equilateral triangle if incircle radius $r = 1.25\, \text{in}$.	2
439	Find the side $ a $ of an equilateral triangle if side $a = 4.53\, \text{mm}$ and perimeter $P = 4.53\, \text{mm}$.	2
440	Find the side $ a $ of an equilateral triangle if side $a = 4\, \text{mm}$, altitude $h = 6\, \text{mm}$, perimeter $P = 4\, \text{mm}$, area $A = 999\, \text{mm}^2$, circumcircle radius $R = 11\, \text{mm}$ and incircle radius $r = 3\, \text{mm}$.	2
441	Find the incircle radius $ r $ of an equilateral triangle if side $a = 7.5\, \text{mm}$ and altitude $h = 12.2\, \text{mm}$.	2
442	Find the side $ a $ of an equilateral triangle if side $a = 2\, \text{mm}$, altitude $h = 7\, \text{mm}$, perimeter $P = 9\, \text{mm}$, area $A = 55\, \text{mm}^2$, circumcircle radius $R = 1\, \text{mm}$ and incircle radius $r = 4\, \text{mm}$.	2
443	Find the altitude $ h $ of an equilateral triangle if side $a = 12\, \text{ft}$.	2
444	Find the perimeter $ P $ of an equilateral triangle if perimeter $P = 51\, \text{mm}$.	2
445	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 10\, \text{in}$.	2
446	Find the altitude $ h $ of an equilateral triangle if side $a = 5\, \text{m}$.	2
447	Find the area $ A $ of an equilateral triangle if side $a = 1\, \text{cm}$.	2
448	Find the area $ A $ of an equilateral triangle if side $a = 15.56\, \text{mm}$, altitude $h = 22\, \text{mm}$ and circumcircle radius $R = 35\, \text{mm}$.	2
449	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 15.56\, \text{mm}$, altitude $h = 22\, \text{mm}$ and incircle radius $r = 35\, \text{mm}$.	2
450	Find the side $ a $ of an equilateral triangle if side $a = 14\, \text{mm}$.	2