Geometry

Question Analysis

Since the lengths of all three sides of  (, , ) are known, we will use Heron's formula to find the area.

Key Concept Explanation

Heron's Formula: The area  of a triangle with side lengths , ,  is given by , where  (semi - perimeter). This formula is useful when all side lengths of a triangle are provided.

Step - by - Step Solution

1. Calculate the semi - perimeter :

Let , ,