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
101	Find the side $ a $ of an equilateral triangle if altitude $h = 12\, \text{mm}$.	11
102	Find the area $ A $ of an equilateral triangle if incircle radius $r = 10$.	10
103	Find the side $ a $ of an equilateral triangle if side $a = 15\, \text{mm}$.	10
104	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 12$.	10
105	Find the area $ A $ of an equilateral triangle if side $a = 6$.	10
106	Find the area $ A $ of an equilateral triangle if side $a = 5\, \text{mm}$.	10
107	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 8\, \text{cm}$.	10
108	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 4$.	10
109	Find the area $ A $ of an equilateral triangle if side $a = 8\, \text{mm}$.	10
110	Find the altitude $ h $ of an equilateral triangle if side $a = 2\, \text{mm}$.	10
111	Find the area $ A $ of an equilateral triangle if side $a = \frac{ 89 }{ 10 }$.	9
112	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 6\, \text{cm}$.	9
113	Find the area $ A $ of an equilateral triangle if perimeter $P = 60$.	9
114	Find the area $ A $ of an equilateral triangle if side $a = 6$ and altitude $h = 6$.	9
115	Find the area $ A $ of an equilateral triangle if side $a = 4$.	9
116	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{cm}$.	9
117	Find the side $ a $ of an equilateral triangle if side $a = 6$.	9
118	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 20\, \text{mm}$.	9
119	Find the side $ a $ of an equilateral triangle if side $a = 28\, \text{mm}$.	9
120	Find the side $ a $ of an equilateral triangle if side $a = 7$.	9
121	Find the side $ a $ of an equilateral triangle if side $a = 8\, \text{ft}$.	9
122	Find the altitude $ h $ of an equilateral triangle if area $A = 12$.	8
123	Find the side $ a $ of an equilateral triangle if side $a = 18\, \text{mm}$.	8
124	Find the side $ a $ of an equilateral triangle if side $a = 10$ and altitude $h = \frac{ 87 }{ 10 }$.	8
125	Find the side $ a $ of an equilateral triangle if side $a = 45\, \text{mm}$.	8
126	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 8\, \text{mm}$.	8
127	Find the area $ A $ of an equilateral triangle if side $a = 15$.	8
128	Find the side $ a $ of an equilateral triangle if altitude $h = 36$.	8
129	Find the side $ a $ of an equilateral triangle if side $a = 16$.	8
130	Find the area $ A $ of an equilateral triangle if side $a = 7\, \text{mm}$.	8
131	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{m}$.	8
132	Find the side $ a $ of an equilateral triangle if ???.	8
133	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 9$.	7
134	Find the area $ A $ of an equilateral triangle if circumcircle radius $R = 9$.	7
135	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 8$.	7
136	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 7$.	7
137	Find the perimeter $ P $ of an equilateral triangle if area $A = 75 \sqrt{ 3 }\, \text{cm}^2$.	7
138	Find the side $ a $ of an equilateral triangle if side $a = 15$.	7
139	Find the area $ A $ of an equilateral triangle if side $a = 6$, altitude $h = 6$ and perimeter $P = 6$.	7
140	Find the side $ a $ of an equilateral triangle if side $a = 5\, \text{mm}$.	7
141	Find the altitude $ h $ of an equilateral triangle if side $a = 4$.	7
142	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{cm}$.	7
143	Find the area $ A $ of an equilateral triangle if altitude $h = 5\, \text{mm}$.	7
144	Find the side $ a $ of an equilateral triangle if side $a = 1$.	7
145	Find the side $ a $ of an equilateral triangle if altitude $h = 24\, \text{cm}$.	7
146	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 10$.	7
147	Find the side $ a $ of an equilateral triangle if side $a = 158\, \text{mm}$.	7
148	Find the side $ a $ of an equilateral triangle if side $a = 10\, \text{mm}$.	7
149	Find the area $ A $ of an equilateral triangle if side $a = 10\, \text{mm}$.	7
150	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 4\, \text{mm}$.	7