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
851	Find the side $ a $ of an equilateral triangle if side $a = 1\, \text{mm}$ and altitude $h = 0.866\, \text{mm}$.	2
852	Find the side $ a $ of an equilateral triangle if altitude $h = 3.5\, \text{mm}$.	2
853	Find the side $ a $ of an equilateral triangle if side $a = 5.2\, \text{mm}$.	2
854	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 25\, \text{mm}$.	2
855	Find the side $ a $ of an equilateral triangle if side $a = 12\, \text{mm}$, altitude $h = 10\, \text{mm}$, perimeter $P = 13\, \text{mm}$, area $A = 15\, \text{mm}^2$, circumcircle radius $R = 12\, \text{mm}$ and incircle radius $r = 23\, \text{mm}$.	2
856	Find the side $ a $ of an equilateral triangle if altitude $h = 2.939\, \text{m}$.	2
857	Find the side $ a $ of an equilateral triangle if side $a = 12\, \text{in}$.	2
858	Find the altitude $ h $ of an equilateral triangle if side $a = 22\, \text{ft}$, altitude $h = 10\, \text{ft}$, perimeter $P = 34.64\, \text{mm}$, area $A = 57.74\, \text{mm}^2$, circumcircle radius $R = 6.67\, \text{mm}$ and incircle radius $r = 3.33\, \text{mm}$.	2
859	Find the side $ a $ of an equilateral triangle if side $a = 11\, \text{m}$ and altitude $h = 15\, \text{m}$.	2
860	Find the perimeter $ P $ of an equilateral triangle if circumcircle radius $R = 10\, \text{cm}$ and incircle radius $r = 5\, \text{cm}$.	2
861	Find the side $ a $ of an equilateral triangle if area $A = 48\, \text{mm}^2$.	2
862	Find the side $ a $ of an equilateral triangle if side $a = 15\, \text{mm}$ and perimeter $P = 45\, \text{mm}$.	2
863	Find the side $ a $ of an equilateral triangle if side $a = 6\, \text{mm}$ and perimeter $P = 36\, \text{mm}$.	2
864	Find the side $ a $ of an equilateral triangle if altitude $h = 200\, \text{mm}$.	2
865	Find the side $ a $ of an equilateral triangle if side $a = 11\, \text{ft}$.	2
866	Find the perimeter $ P $ of an equilateral triangle if side $a = 11\, \text{ft}$.	2
867	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 24\, \text{in}$.	2
868	Find the side $ a $ of an equilateral triangle if side $a = 8.6\, \text{cm}$.	2
869	Find the altitude $ h $ of an equilateral triangle if side $a = 7\, \text{mm}$.	2
870	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 100\, \text{mm}$.	2
871	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 30\, \text{in}$.	2
872	Find the incircle radius $ r $ of an equilateral triangle if side $a = 10.16\, \text{cm}$.	2
873	Find the side $ a $ of an equilateral triangle if side $a = 32\, \text{in}$.	2
874	Find the side $ a $ of an equilateral triangle if circumcircle radius $R = 16\, \text{in}$.	2
875	Find the incircle radius $ r $ of an equilateral triangle if side $a = 7\, \text{mm}$.	2
876	Find the circumcircle radius $ R $ of an equilateral triangle if circumcircle radius $R = 16\, \text{in}$.	2
877	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 7\, \text{mm}$.	2
878	Find the incircle radius $ r $ of an equilateral triangle if side $a = 1\, \text{mm}$ and perimeter $P = 2\, \text{mm}$.	2
879	Find the area $ A $ of an equilateral triangle if side $a = 2 \sqrt{ 3 }\, \text{mm}$.	1
880	Find the incircle radius $ r $ of an equilateral triangle if circumcircle radius $R = 1\, \text{mm}$.	1
881	Find the side $ a $ of an equilateral triangle if side $a = 3\, \text{mm}$ and altitude $h = 4\, \text{cm}$.	1
882	Find the altitude $ h $ of an equilateral triangle if perimeter $P = 36\, \text{mm}$.	1
883	Find the side $ a $ of an equilateral triangle if area $A = 4 \sqrt{ 3 }\, \text{mm}^2$.	1
884	Find the side $ a $ of an equilateral triangle if side $a = 144\, \text{in}$.	1
885	Find the altitude $ h $ of an equilateral triangle if area $A = 32\, \text{ft}^2$.	1
886	Find the altitude $ h $ of an equilateral triangle if side $a = 26\, \text{in}$ and perimeter $P = 218\, \text{in}$.	1
887	Find the side $ a $ of an equilateral triangle if side $a = 16\, \text{cm}$.	1
888	Find the side $ a $ of an equilateral triangle if side $a = 22\, \text{ft}$ and altitude $h = 10\, \text{ft}$.	1
889	Find the side $ a $ of an equilateral triangle if side $a = 12\, \text{in}$, perimeter $P = 12\, \text{in}$ and circumcircle radius $R = 12\, \text{in}$.	1
890	Find the side $ a $ of an equilateral triangle if side $a = 100\, \text{ft}$.	1
891	Find the altitude $ h $ of an equilateral triangle if side $a = 27\, \text{mm}$.	1
892	Find the side $ a $ of an equilateral triangle if altitude $h = 24\, \text{in}$.	1
893	Find the side $ a $ of an equilateral triangle if altitude $h = 90\, \text{mm}$.	1
894	Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 4\, \text{in}$.	1
895	Find the altitude $ h $ of an equilateral triangle if side $a = 7\, \text{km}$ and altitude $h = 5.4\, \text{km}$.	1
896	Find the side $ a $ of an equilateral triangle if side $a = 5.2\, \text{mm}$ and incircle radius $r = 30\, \text{mm}$.	1
897	Find the incircle radius $ r $ of an equilateral triangle if side $a = 101.6\, \text{mm}$.	1
898	Find the side $ a $ of an equilateral triangle if side $a = 4\, \text{in}$.	1
899	Find the side $ a $ of an equilateral triangle if area $A = 1.7\, \text{mm}^2$.	1
900	Find the side $ a $ of an equilateral triangle if side $a = 4\, \text{in}$.	1