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
1051	Find the circumcircle radius $ R $ of an equilateral triangle if circumcircle radius $R = 90\, \text{in}$.	1
1052	Find the area $ A $ of an equilateral triangle if perimeter $P = 400\, \text{m}$.	1
1053	Find the side $ a $ of an equilateral triangle if area $A = 9\, \text{mm}^2$.	1
1054	Find the altitude $ h $ of an equilateral triangle if area $A = 9\, \text{mm}^2$.	1
1055	Find the side $ a $ of an equilateral triangle if altitude $h = 15\, \text{mm}$.	1
1056	Find the area $ A $ of an equilateral triangle if side $a = 75\, \text{mm}$.	1
1057	Find the side $ a $ of an equilateral triangle if side $a = 36 \sqrt{ 3 }\, \text{mm}$.	1
1058	Find the side $ a $ of an equilateral triangle if area $A = 36 \sqrt{ 3 }\, \text{mm}^2$.	1
1059	Find the altitude $ h $ of an equilateral triangle if side $a = 35\, \text{mm}$.	1
1060	Find the altitude $ h $ of an equilateral triangle if side $a = 785\, \text{mm}$ and altitude $h = 1410\, \text{mm}$.	1
1061	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{m}$ and perimeter $P = 30\, \text{mm}$.	1
1062	Find the incircle radius $ r $ of an equilateral triangle if circumcircle radius $R = 8\, \text{m}$.	1
1063	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 8\, \text{m}$.	1
1064	Find the side $ a $ of an equilateral triangle if side $a = 800\, \text{mm}$.	1
1065	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{cm}$.	1
1066	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{cm}$, altitude $h = 8.66\, \text{mm}$, perimeter $P = 30\, \text{mm}$, area $A = 43.3\, \text{mm}^2$, circumcircle radius $R = 5.77\, \text{mm}$ and incircle radius $r = 2.89\, \text{mm}$.	1
1067	Find the area $ A $ of an equilateral triangle if side $a = 2\, \text{in}$.	1
1068	Find the altitude $ h $ of an equilateral triangle if perimeter $P = 27 \sqrt{ 3 }\, \text{mm}$.	1
1069	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 6.5\, \text{in}$.	1
1070	Find the side $ a $ of an equilateral triangle if side $a = 4.04\, \text{in}$.	1
1071	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 4.04\, \text{in}$.	1
1072	Find the side $ a $ of an equilateral triangle if side $a = 357\, \text{mm}$.	1
1073	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 357\, \text{mm}$.	1
1074	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 8\, \text{cm}$.	1
1075	Find the side $ a $ of an equilateral triangle if side $a = 18\, \text{in}$, altitude $h = 15.59\, \text{in}$, perimeter $P = 54\, \text{in}$, area $A = 140.3\, \text{in}^2$, circumcircle radius $R = 10.39\, \text{in}$ and incircle radius $r = 5.2\, \text{in}$.	1
1076	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 18\, \text{in}$, altitude $h = 15.59\, \text{in}$, perimeter $P = 54\, \text{in}$, area $A = 140.3\, \text{in}^2$, circumcircle radius $R = 10.39\, \text{in}$ and incircle radius $r = 5.2\, \text{in}$.	1
1077	Find the altitude $ h $ of an equilateral triangle if side $a = 6\, \text{ft}$.	1
1078	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 10\, \text{m}$.	1
1079	Find the area $ A $ of an equilateral triangle if incircle radius $r = 10\, \text{m}$.	1
1080	Find the area $ A $ of an equilateral triangle if altitude $h = 10\, \text{m}$.	1
1081	Find the area $ A $ of an equilateral triangle if incircle radius $r = 5\, \text{ft}$.	1
1082	Find the side $ a $ of an equilateral triangle if altitude $h = 140\, \text{in}$.	1
1083	Find the circumcircle radius $ R $ of an equilateral triangle if circumcircle radius $R = 10\, \text{mm}$.	1
1084	Find the altitude $ h $ of an equilateral triangle if side $a = \sqrt{ 3 }\, \text{mm}$.	1
1085	Find the side $ a $ of an equilateral triangle if side $a = 26\, \text{mm}$.	1
1086	Find the side $ a $ of an equilateral triangle if area $A = 1260\, \text{cm}^2$.	1
1087	Find the side $ a $ of an equilateral triangle if area $A = 1260\, \text{cm}^2$.	1
1088	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{mm}$ and altitude $h = 4\, \text{mm}$.	1
1089	Find the side $ a $ of an equilateral triangle if side $a = 919\, \text{mm}$.	1
1090	Find the side $ a $ of an equilateral triangle if side $a = 1\, \text{mm}$, altitude $h = 2\, \text{mm}$, perimeter $P = 4\, \text{mm}$, area $A = 4\, \text{mm}^2$, circumcircle radius $R = 1.2\, \text{mm}$ and incircle radius $r = 0.3\, \text{mm}$.	1
1091	Find the side $ a $ of an equilateral triangle if side $a = 1\, \text{mm}$ and altitude $h = 2\, \text{mm}$.	1
1092	Find the side $ a $ of an equilateral triangle if side $a = 1\, \text{mm}$ and incircle radius $r = 0.7\, \text{mm}$.	1
1093	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 57910979.4734\, \text{mm}$.	1
1094	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{ft}$ and altitude $h = 3\, \text{ft}$.	1
1095	Find the side $ a $ of an equilateral triangle if area $A = 100\, \text{m}^2$.	1
1096	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{cm}$.	1
1097	Find the side $ a $ of an equilateral triangle if side $a = 8.66\, \text{in}$ and altitude $h = 15\, \text{in}$.	1
1098	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 150\, \text{m}$ and perimeter $P = 450\, \text{m}$.	1
1099	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 150\, \text{m}$.	1
1100	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 6\, \text{mm}$ and incircle radius $r = 3\, \text{mm}$.	1