Equilateral Triangle

(the database of solved problems)

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

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ID	Problem	Count
401	Find the area $ A $ of an equilateral triangle if incircle radius $r = 9\, \text{mm}$.	3
402	Find the side $ a $ of an equilateral triangle if side $a = 2\, \text{mm}$ and perimeter $P = 6\, \text{mm}$.	3
403	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 5\, \text{mm}$.	3
404	Find the area $ A $ of an equilateral triangle if side $a = 0.25\, \text{in}$.	3
405	Find the area $ A $ of an equilateral triangle if side $a = 40\, \text{ft}$.	3
406	Find the side $ a $ of an equilateral triangle if side $a = \sqrt{ 2 }\, \text{mm}$.	3
407	Find the side $ a $ of an equilateral triangle if incircle radius $r = 1.832\, \text{in}$.	3
408	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 500\, \text{cm}$.	3
409	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 6$.	2
410	Find the perimeter $ P $ of an equilateral triangle if altitude $h = 24$.	2
411	Find the side $ a $ of an equilateral triangle if side $a = 2012$.	2
412	Find the side $ a $ of an equilateral triangle if area $A = 26 \sqrt{ 3 }$.	2
413	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 12$.	2
414	Find the side $ a $ of an equilateral triangle if side $a = \frac{ 69 }{ 10 }$.	2
415	Find the perimeter $ P $ of an equilateral triangle if side $a = 40$ and altitude $h = 20$.	2
416	Find the side $ a $ of an equilateral triangle if side $a = 19$.	2
417	Find the side $ a $ of an equilateral triangle if side $a = \frac{ 108 }{ 5 }$.	2
418	Find the side $ a $ of an equilateral triangle if altitude $h = \frac{ 9 }{ 4 }$.	2
419	Find the altitude $ h $ of an equilateral triangle if side $a = 36$.	2
420	Find the side $ a $ of an equilateral triangle if side $a = 5$ and altitude $h = 10$.	2
421	Find the side $ a $ of an equilateral triangle if side $a = 5$, altitude $h = 10$ and incircle radius $r = 5$.	2
422	Find the side $ a $ of an equilateral triangle if side $a = \frac{ 202 }{ 25 }$ and altitude $h = 7$.	2
423	Find the side $ a $ of an equilateral triangle if altitude $h = 7$.	2
424	Find the area $ A $ of an equilateral triangle if side $a = 16$.	2
425	Find the side $ a $ of an equilateral triangle if incircle radius $r = 26$.	2
426	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 600$.	2
427	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 2$.	2
428	Find the altitude $ h $ of an equilateral triangle if side $a = 300$.	2
429	Find the side $ a $ of an equilateral triangle if area $A = 9$.	2
430	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 78$.	2
431	Find the altitude $ h $ of an equilateral triangle if side $a = 12$ and perimeter $P = 36$.	2
432	Find the area $ A $ of an equilateral triangle if perimeter $P = 510$.	2
433	Find the side $ a $ of an equilateral triangle if side $a = 3$ and altitude $h = 7$.	2
434	Find the side $ a $ of an equilateral triangle if side $a = 13$.	2
435	Find the area $ A $ of an equilateral triangle if side $a = 48$.	2
436	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 10$.	2
437	Find the area $ A $ of an equilateral triangle if side $a = 30$ and circumcircle radius $R = 65$.	2
438	Find the area $ A $ of an equilateral triangle if side $a = 14 \sqrt{ 3 }$.	2
439	Find the altitude $ h $ of an equilateral triangle if side $a = 1$.	2
440	Find the side $ a $ of an equilateral triangle if side $a = \frac{ 156 }{ 5 }$ and altitude $h = \frac{ 26 }{ 5 }$.	2
441	Find the side $ a $ of an equilateral triangle if side $a = 17$ and incircle radius $r = \frac{ 49 }{ 10 }$.	2
442	Find the area $ A $ of an equilateral triangle if side $a = 17$ and incircle radius $r = \frac{ 49 }{ 10 }$.	2
443	Find the area $ A $ of an equilateral triangle if side $a = 17$ and circumcircle radius $R = \frac{ 49 }{ 10 }$.	2
444	Find the altitude $ h $ of an equilateral triangle if perimeter $P = 44$.	2
445	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 1985$.	2
446	Find the side $ a $ of an equilateral triangle if altitude $h = 8$.	2
447	Find the side $ a $ of an equilateral triangle if incircle radius $r = \frac{ 1 }{ 2 }$.	2
448	Find the side $ a $ of an equilateral triangle if side $a = 21$, altitude $h = 13$ and incircle radius $r = 10$.	2
449	Find the side $ a $ of an equilateral triangle if altitude $h = 13$.	2
450	Find the perimeter $ P $ of an equilateral triangle if side $a = 1$ and altitude $h = \frac{ 1 }{ 2 }$.	2