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
451	Find the altitude $ h $ of an equilateral triangle if side $a = 10\, \text{cm}$.	2
452	Find the perimeter $ P $ of an equilateral triangle if side $a = 35.6\, \text{mm}$.	2
453	Find the area $ A $ of an equilateral triangle if area $A = 35.6\, \text{cm}^2$.	2
454	Find the side $ a $ of an equilateral triangle if side $a = 4.9\, \text{mm}$.	2
455	Find the perimeter $ P $ of an equilateral triangle if circumcircle radius $R = 1\, \text{mm}$.	2
456	Find the incircle radius $ r $ of an equilateral triangle if side $a = 0.8\, \text{mm}$, altitude $h = 0.7\, \text{mm}$, perimeter $P = 2.41\, \text{mm}$, area $A = 0.2827\, \text{mm}^2$, circumcircle radius $R = 0.46\, \text{mm}$ and incircle radius $r = 0.23\, \text{mm}$.	2
457	Find the incircle radius $ r $ of an equilateral triangle if side $a = 1.73\, \text{mm}$, altitude $h = 1.5\, \text{mm}$, perimeter $P = 5.2\, \text{mm}$, area $A = 1.3\, \text{mm}^2$, circumcircle radius $R = 1\, \text{mm}$ and incircle radius $r = 0.5\, \text{mm}$.	2
458	Find the side $ a $ of an equilateral triangle if side $a = 144\, \text{in}$ and altitude $h = 66\, \text{in}$.	2
459	Find the side $ a $ of an equilateral triangle if side $a = 27\, \text{m}$, altitude $h = 13.5\, \text{m}$ and perimeter $P = 81\, \text{m}$.	2
460	Find the side $ a $ of an equilateral triangle if side $a = 27\, \text{m}$, altitude $h = 23.4\, \text{m}$ and perimeter $P = 81\, \text{m}$.	2
461	Find the side $ a $ of an equilateral triangle if incircle radius $r = 12.25\, \text{in}$.	2
462	Find the side $ a $ of an equilateral triangle if incircle radius $r = 6.125\, \text{in}$.	2
463	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 13.125\, \text{in}$.	2
464	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 12.75\, \text{in}$.	2
465	Find the circumcircle radius $ R $ of an equilateral triangle if incircle radius $r = 1.35\, \text{mm}$.	2
466	Find the side $ a $ of an equilateral triangle if side $a = 100\, \text{cm}$.	2
467	Find the side $ a $ of an equilateral triangle if altitude $h = 7\, \text{mm}$.	2
468	Find the area $ A $ of an equilateral triangle if side $a = 54\, \text{mm}$.	2
469	Find the side $ a $ of an equilateral triangle if altitude $h = 6.5\, \text{mm}$.	2
470	Find the altitude $ h $ of an equilateral triangle if side $a = 172.64\, \text{m}$.	2
471	Find the altitude $ h $ of an equilateral triangle if side $a = 3\, \text{mm}$.	2
472	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 12\, \text{in}$.	2
473	Find the side $ a $ of an equilateral triangle if side $a = 42\, \text{mm}$ and altitude $h = 25\, \text{mm}$.	2
474	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 50\, \text{mm}$.	2
475	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 36\, \text{mm}$.	2
476	Find the altitude $ h $ of an equilateral triangle if side $a = 30\, \text{mm}$.	2
477	Find the side $ a $ of an equilateral triangle if altitude $h = 20\, \text{cm}$.	2
478	Find the altitude $ h $ of an equilateral triangle if side $a = 24\, \text{mm}$, altitude $h = 6\, \text{mm}$, perimeter $P = 12\, \text{mm}$ and area $A = 46\, \text{mm}^2$.	2
479	Find the side $ a $ of an equilateral triangle if area $A = 16 \sqrt{ 3 }\, \text{mm}^2$.	2
480	Find the side $ a $ of an equilateral triangle if side $a = 100\, \text{mm}$ and circumcircle radius $R = 60\, \text{mm}$.	2
481	Find the side $ a $ of an equilateral triangle if side $a = 100\, \text{mm}$, perimeter $P = 300\, \text{mm}$ and incircle radius $r = 60\, \text{mm}$.	2
482	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 31\, \text{mm}$.	2
483	Find the circumcircle radius $ R $ of an equilateral triangle if incircle radius $r = 400\, \text{km}$.	2
484	Find the perimeter $ P $ of an equilateral triangle if perimeter $P = 10\, \text{ft}$.	2
485	Find the side $ a $ of an equilateral triangle if side $a = 11.5\, \text{ft}$.	2
486	Find the side $ a $ of an equilateral triangle if side $a = 25\, \text{mm}$.	2
487	Find the side $ a $ of an equilateral triangle if side $a = 8\, \text{ft}$ and perimeter $P = 24\, \text{ft}$.	2
488	Find the side $ a $ of an equilateral triangle if area $A = 20\, \text{mm}^2$.	2
489	Find the side $ a $ of an equilateral triangle if side $a = 30\, \text{cm}$.	2
490	Find the altitude $ h $ of an equilateral triangle if side $a = 30\, \text{cm}$.	2
491	Find the side $ a $ of an equilateral triangle if side $a = 85\, \text{mm}$.	2
492	Find the side $ a $ of an equilateral triangle if altitude $h = 9\, \text{mm}$.	2
493	Find the side $ a $ of an equilateral triangle if side $a = 825\, \text{mm}$.	2
494	Find the altitude $ h $ of an equilateral triangle if side $a = 20\, \text{ft}$.	2
495	Find the side $ a $ of an equilateral triangle if side $a = 20\, \text{mm}$ and perimeter $P = 60\, \text{mm}$.	2
496	Find the altitude $ h $ of an equilateral triangle if side $a = 20\, \text{mm}$.	2
497	Find the altitude $ h $ of an equilateral triangle if side $a = 61\, \text{mm}$.	2
498	Find the altitude $ h $ of an equilateral triangle if side $a = 61\, \text{in}$.	2
499	Find the side $ a $ of an equilateral triangle if side $a = 39\, \text{in}$.	2
500	Find the altitude $ h $ of an equilateral triangle if altitude $h = 30\, \text{in}$.	2