A rectangular sheet measures

MATHEMATICS · Single correct · CBSE · Mathematics · Area · Area

Problem

30\,\text{cm}\times20\,\text{cm}

. A circular hole of radius

5\,\text{cm}

is punched out from it. Which calculation gives the area of the remaining sheet? (a)

(30+20)^{2}-\pi(5)^{2}

(b)

30\times20+\pi(5)^{2}

(c)

30\times20-\pi(5)^{2}

(d)

30\times20-\pi(10)^{2}