Question
The length of the each side of an equilateral triangle
is 28√3 cm . The area of circumcircle, (cm 2 ) isSolution
Area of circumcircle of a ∆ = πR 2 =π(a/√3) 2 = π(28√3/√3) 2 =π × 282 = 22/7 × 28 × 28 = 2464 cm 2
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