Question

find the area of a triangle with sides 8,11,13 centimetres​

Answer 1

Answer:

553.563005 cm²

Explanation:

Given

8 cm = a

11 cm = b

13 cm = c

Semi perimeter =

$\frac{(a + b + c)}{2}$

$\frac{8 + 11 + 13}{2}$

= 32 cm

According to the Heron's formula,

Area =

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

$\sqrt{(32)(32 - 8)(32 - 11)(32 - 13)}$

$\sqrt{32 \times 24 \times 21 \times 19}$

=553.563005 cm²

Hope it helps!!