Correct answer is (d) 10π cm2
Explanation: The area of the circle is = πr2 = π52 = 25 πcm2
The area of the pentagon is 5 x (1/2 x s x h) = 5 x (1/2 x 4.33 x 2.5) = 5 x 5.4125 = 27.0625 cm2
Therefore, the area of the shaded part of the circle is 25 π cm2 - 27.0625 cm2 = 10 π cm2