Question:
The area of an equilateral triangle with side 2√3 cm is
(a) 5.196 cm2
(b) 0.866 cm2
(c) 3.496 cm2
(d) 1.732 cm2
Solution:
(a) Given, side of an equilateral triangle is 2√3 cm.
Area of an equilateral triangle = √3/4 (Side)2
= √3/4 (2√3)2 = (√3/4) x 4 x 3
= 3√3 = 3 x 1.732 = 5.196 cm2
Hence, the area of an equilateral triangle is 5.196 cm2.
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