For a cross section that is an equilateral triangle with side length

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

Problem

s

, which of the following expressions gives the area

A

of the cross section? (a)

\dfrac{1}{2}s^{2}

(b)

\dfrac{3\sqrt{3}}{4}s^{2}

(c)

\dfrac{\sqrt{3}}{4}s^{2}

(d)

\dfrac{\sqrt{3}}{2}s^{2}