Find the area of a triangle whose side lengths are .

MATHEMATICS · Single correct · CBSE · Mathematics · Heron's Formula · Heron's Formula

Problem

Find the area of a triangle whose side lengths are

7\,\text{cm},\;8\,\text{cm},\;9\,\text{cm}

. (a)

36\,\text{cm}^2

(b)

12\sqrt5\,\text{cm}^2

(c)

4\sqrt{30}\,\text{cm}^2

(d)

18\sqrt5\,\text{cm}^2