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Area of a triangle

Basic formula

Let $b$ and $h$ represent the base and height of a triangle, the area of a triangle is written as follows as per the geometric system.

$A$ $\,=\,$ $\dfrac{1}{2} \times b \times h$

Heron’s formula

Let $a,$ $b$ and $c$ denote lengths of three sides and $2s$ represents the perimeter of a triangle, the area of triangle is written as the following hero’s formula.

$A$ $\,=\,$ $\sqrt{s(s-a)(s-b)(s-c)}$

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