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 ∆ = Ï€R 2  =Ï€(a/√3) 2  = Ï€(28√3/√3) 2   =Ï€ × 282  = 22/7 × 28 × 28 = 2464 cm 2 Â
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