Last Updated : 15 Nov, 2018
The length of the two adjacent sides of a rectangle inscribed in a circle is 5 cm and 12 cm. Find the radius of the circle. (A) 13 (B) 15 (C) 6.5 (D) 7.5

Answer: (C)

Explanation: Diagonal of the rectangle will be the diameter of the circle. Diagonal = \\sqrt{5 * 5 + 12 * 12} = \\sqrt{25 + 144} = 13 Radius = 13/2 = 6.5

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