SSC CPO SI and ASI 2015 Paper

Question : 140 of 199

Marks: +1, -0

In the figure, OED and OBA are sectors of a circle with center O. The area of the shaded portion is

Solution:

(4)
Area of the shaded portion is,

A= {45 \π}/{360} ×(R^{2}-r^{2} )

= {22}/{7 ×8} \×(16-9)=\ {22}/{8}=\ {11}/{4} m^{2}

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