Question
The length of the each side of an equilateral triangle
is 63√3 cm . The area of circumcircle, (cm 2 ) isSolution
Area of circumcircle of a ∆ = Ï€R 2  =Ï€(a/√3) 2  = Ï€ (63√3/√3) 2   =Ï€ × 632  = 22/7 × 63 × 63 = 12474 cm 2 Â
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