Question

12 The perimeter of a rectangle

12. The perimeter of a rectangle is 60 cm. The width is 12 cm more than the length. Find the length
and the width​

Answer 1

Length = 9 cm

Width = 21 cm

Explanation:

Length = x

Width = x + 12

Perimeter = 60 cm

2 * ( length + width ) = 60

2 * (x + x +12) = 60

2x + 12 = 60/2 = 30

2x = 30 - 12 = 18

x = 18/2 = 9

Length = 9 cm

Width = 9 + 12 = 21 cm