State the correct expression for the semi-perimeter of a triangle with side lengths

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

Problem

State the correct expression for the semi-perimeter

s

of a triangle with side lengths

a

b

and

c

. (a)

a+b+c

(b)

\dfrac{abc}{2}

(c)

\dfrac{a+b+c}{2}

(d)

\dfrac{a+b+c}{3}