Question

Compute the area of a triangle with sides. 15X15x18

Area=

Answer 1

The answer is 2025 units² because the formula for finding the area of a triangle is: A▲= ½bh ↔ bh ÷ 2. So, here you go.

Answer 2

If both sides are 15, it is an isosceles triangle.
Half the triangle would be a right angle triangle.

Half the base would be (18 ÷ 2) = 9 cm

Find the height:
height² = 15² - (18 ÷ 2)²
height² = 144
height = √144
height = 12

area of triangle = 1/2 x 18 x 12 = 108 unit²