Question

The general formula for area of a triangle with sides $a$, $b$ and $c$ and the semiperimeter of the triangle denoted by $s$ is?

• A. $A=\frac{1}{2}\times Base\times Height$
• B. $A=\frac{1}{2}\times Base\times Attitude$
• C. $A=\sqrt{s(s-a)(s-b)(s-c)}$
• D. $A=\sqrt{(s-a)(s-b)(s-c)}$
• E. None of the above

Answer 1

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

General formula of area of triangle $A=\sqrt{s(s-a)(s-b)(s-c)}$, where

$s=$ semiperimeter of the triangle

$a,b$ and $c$ are the sides of the triangle

It is also called as the Heron's formula for finding the area of the triangles.