What is the area of a semi-circle of diameter ' $d$ '?\

Question

Professor PC Thomas Classes · Answer

(c): Given, diameter of semi-circle = $d$\ $	herefore \quad$ Radius, $r=d / 2$\ $\quad$ Area of semi circle $=\frac{1}{2} \pi\left(\frac{d}{2}ight)^{2}$\ $$ =\frac{1}{2} \pi 	imes \frac{d^{2}}{4}=\frac{1}{8} \pi d^{2} $$