Perimeter of an equilateral triangle is 18 cm. Its area is
(a) 6v3 cm? (b) 9/3 cm? (c) 10v3 cm? (d) 12V3 cm2
Answers
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Step-by-step explanation:
- 18/3=6
- (√3/4) a²
- (√3/4)6²
- 9√3
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