Question

a triangle whose sides are 15 CM 25 CM 30 cm represent early then find the area of triangle

Answer 1

Hola Mate!!

Here's your answer:-

We can solve this by using heron's formula :

Sides of the triangle = 15 cm (a),25 cm (b) & 30 cm (c)

Semi perimeter (s) =
$\frac{a + b + c}{2} = \frac{15 + 25 + 30}{2} = \frac{70}{2} = 35$

Area of triangle:
$\sqrt{s(s - a)(s - b)(s - c)} \\ = \sqrt{35(35 - 15)(35 - 25)(35 - 30)} \\ = \sqrt{35 \times 20 \times 10 \times 5} \\ = \sqrt{7 \times 5 \times 5 \times 2 \times 2 \times 2 \times 5 \times 5} \\ = 5 \times 2 \times 5 \sqrt{7 \times 2} \\ = 50 \sqrt{14} \\ = 50 \times 3.73 \\ = 186.5 {cm}^{2}$

Hope it helps
Mark me as brainliest if it's correct