For a semicircular cross section with diameter of length

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

Problem

d

, which expression gives the exact area

A(d)

of that cross section in terms of

d

? (a)

\dfrac{\pi d^{2}}{4}

(b)

\dfrac{\pi d^{2}}{16}

(c)

\dfrac{\pi d^{2}}{8}

(d)

\dfrac{\pi d^{2}}{2}