Question

1. Find the area of a triangle whose sides are 12 cm, 6 cm and 15 cm.

Answer 1

Answer:

$34.197cm^{2}$

Step-by-step explanation:

Sides of triangle :

a = 12 cm

b = 6 cm

c = 15 cm

Area of triangle = $\sqrt{s(s - a)(s - b)(s - c)}$

Where,

$s = \frac{a + b + c}{2}$

Substituting the values of a, b, and c in the above equation,

$s = \frac{12 + 6 + 15}{2}$

s = 16.5

So,

Area = $\sqrt{16.5(16.5 - 12)(16.5 - 6)(16.5 - 15)}$

        = $\sqrt{16.5 * 14.5 * 10.5 * 1.5}$

        =  $34.197cm^{2}$

Answer 2

Answer:

A ≈ 34.2 cm

hope it helps you