Question

The area of the right-

angled triangle is
equal to the area of
the rectangle.
Work out the value of
x.

Answer 1

x = 15 cm

Explanation:

Triangle area:

`area = ((20)(15))/(2) = (300)/(2) = 150 \: cm`

Then rectangle area:

`area = (10)(x) \\ 150 = 10x \\ x = (150)/(10) \\ x = 15 \: cm`