Question

find the area of an isosceles right triangle, if one of the side is 20 cm long

Answer 1

Answer:

40cm

Step-by-step explanation:

area of a triangle = side × side

20cm × 20cm

40cm

Answer 2

Answer:

200cm

Step-by-step explanation:

Area of triangle =

$\frac{1}{2} \times base \times hight$

$\frac{1}{2} \times 20 \times 20 = 200cm$