Question

find the area of an isosceles right triangle if one of the right sides is 20 cm long (hint. in this isosceles triangle base =altitude = 20 cm )

Answer 1

Answer:

Step-by-step explanation:

Area of isosceles triangle = 1/2 × side 2

= 1/2 × 20× 20

= 10 cm × 20 cm

= 200 cm2 (ans)

Answer 2

Given,

The isosceles right triangle has its side 20 cm long.

To find,

We have to find the area of the isosceles right triangle.

Solution,

The area of the isosceles right triangle whose side is 20 cm long is 200 cm².

We can simply find the area of the isosceles right triangle by using the formula of area of the triangle,

Area of triangle = 1/2 * b *h

                          = 1/2 * 20 * 20

                          = 200 cm²

Hence, the area of the isosceles right triangle whose side is 20 cm long is 200 cm ².