Question
The area of an equilateral triangle is 64√3
cm2. Find the radius of the circle that circumscribes the triangle.Solution
Let length of each side of the triangle be 'a' cm. ATQ; 64√3 = (√3/4) X a2 Or, a2 = 256 So, a = 16 So, circum-radius of equilateral triangle = (a/√3) = (16/√3) cm
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