Question

Heron's formula for calculating area of triangle is given by ______.

• A. $\sqrt{s(s-b)(s-c)}$
• B. $\sqrt{(s-a)(s-b)(s-c)}$
• C. $\sqrt{s(s-a)(s-b)(s-c)}$
• D. $\sqrt{s(s-a)(s-c)}$

Answer 1

The correct option is C $\sqrt{s(s-a)(s-b)(s-c)}$

The formula given by Heron for area of a triangle is
$A=\sqrt{s(s-a)(s-b)(s-c)}$
Here, s is the semi - perimeter, and a,b and c are the sides of the triangle

$s=\frac{a+b+c}{2}$