Area and Perimeter Practice Test 1

Question : 9 of 40

Marks: +1, -0

A circular play ground is surrounded by a 21m road. The radius of the ground is 105 m. Find the area of the road.

Solution:

Area of the road (shaded portion)
=

{22}/7 [(126)^2-(105)^2]

{22}/7

× 231 × 21 = 15246

m^2

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