Question

find the area of triangle sides 8, 11, 13 ​

Answer 1

Step-by-step explanation:

Given that

Sides of triangle are 8 11 13

To find

area of triangle

Solution

$semi \: perimeter = \frac{8 + 11 + 13}{2}$

semi perimeter(s) is 16.

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

$= \sqrt{16(16 - 8)(16 - 11)(16 - 13)}$

$area = 43.817$

area is 43.817 sq mtr.