Question

A rectangle has an area of 216.24 cm2 and a height of 15.9 cm. How long is the base of the rectangle ?

Answer 1

The formula for the area of a rectangle is A = bh.
Substitute 216.24 for A (area) and 15.9 for h (height).

A = bh
216.24 = b(15.9)
÷ 15.9      ÷ 15.9            Divide 15.9 on both sides.
13.6 = b

So, the base of the rectangle is 13.6 cm.