Question
The area of the incircle of an equilateral triangle of side 42 cm is :
Answer: Option C
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Radius of incircle = `(a)/(2sqrt(3)) = (42)/(2sqrt(3)) cm = 7sqrt(3) `cm
Area of incircle = `(22/7 xx 49 xx 3) cm^2 = 462 cm^2`
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