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
51	Find the altitude $ h $ of an equilateral triangle if side $a = 15$.	22
52	Find the side $ a $ of an equilateral triangle if side $a = 15\, \text{m}$.	22
53	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{m}$, altitude $h = 6\, \text{cm}$ and perimeter $P = 6\, \text{cm}$.	22
54	Find the side $ a $ of an equilateral triangle if area $A = 1000\, \text{cm}$.	20
55	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{mm}$.	20
56	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{m}$ and altitude $h = 6\, \text{cm}$.	20
57	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 5$.	18
58	Find the side $ a $ of an equilateral triangle if side $a = 30$.	18
59	Find the area $ A $ of an equilateral triangle if side $a = 30$.	18
60	Find the side $ a $ of an equilateral triangle if side $a = 10$.	18
61	Find the side $ a $ of an equilateral triangle if side $a = 5\, \text{m}$.	17
62	Find the altitude $ h $ of an equilateral triangle if side $a = 10$.	17
63	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 14$.	17
64	Find the side $ a $ of an equilateral triangle if incircle radius $r = 9$.	17
65	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 8$.	16
66	Find the side $ a $ of an equilateral triangle if area $A = 12\, \text{cm}$.	16
67	Find the side $ a $ of an equilateral triangle if side $a = 3$.	16
68	Find the side $ a $ of an equilateral triangle if side $a = 2\, \text{mm}$.	16
69	Find the side $ a $ of an equilateral triangle if altitude $h = 30\, \text{cm}$.	15
70	Find the side $ a $ of an equilateral triangle if area $A = 26 \sqrt{ 3 }\, \text{cm}$.	15
71	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{mm}$.	15
72	Find the side $ a $ of an equilateral triangle if altitude $h = 5\, \text{mm}$.	15
73	Find the side $ a $ of an equilateral triangle if side $a = 6.9\, \text{mm}$.	15
74	Find the side $ a $ of an equilateral triangle if altitude $h = 15\, \text{cm}$.	14
75	Find the side $ a $ of an equilateral triangle if perimeter $P = 24 \sqrt{ 3 }\, \text{cm}$.	14
76	Find the side $ a $ of an equilateral triangle if side $a = 8\, \text{mm}$ and perimeter $P = 8\, \text{cm}$.	14
77	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 7$.	13
78	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 5$.	13
79	Find the side $ a $ of an equilateral triangle if area $A = 1000$.	13
80	Find the area $ A $ of an equilateral triangle if side $a = 6\, \text{mm}$.	13
81	Find the side $ a $ of an equilateral triangle if incircle radius $r = 4$.	13
82	Find the area $ A $ of an equilateral triangle if incircle radius $r = 4$.	13
83	Find the side $ a $ of an equilateral triangle if side $a = 8.9\, \text{m}$.	13
84	Find the side $ a $ of an equilateral triangle if side $a = 4\, \text{mm}$.	13
85	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{mm}$.	12
86	Find the area $ A $ of an equilateral triangle if altitude $h = 6$ and perimeter $P = 6$.	12
87	Find the side $ a $ of an equilateral triangle if side $a = 19\, \text{mm}$.	12
88	Find the side $ a $ of an equilateral triangle if side $a = 26\, \text{cm}$.	12
89	Find the side $ a $ of an equilateral triangle if side $a = 1\, \text{mm}$.	12
90	Find the side $ a $ of an equilateral triangle if side $a = 8\, \text{mm}$.	12
91	Find the side $ a $ of an equilateral triangle if side $a = 4\, \text{m}$ and perimeter $P = 12\, \text{cm}$.	11
92	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 9\, \text{cm}$.	11
93	Find the area $ A $ of an equilateral triangle if perimeter $P = 24 \sqrt{ 3 }$.	11
94	Find the area $ A $ of an equilateral triangle if perimeter $P = 18$.	11
95	Find the area $ A $ of an equilateral triangle if altitude $h = 9$.	11
96	Find the side $ a $ of an equilateral triangle if altitude $h = 30$.	11
97	Find the side $ a $ of an equilateral triangle if altitude $h = 12\, \text{mm}$.	11
98	Find the side $ a $ of an equilateral triangle if altitude $h = 24\, \text{cm}$.	11
99	Find the side $ a $ of an equilateral triangle if side $a = 20\, \text{mm}$.	11
100	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 7\, \text{cm}$.	11