Question

Find the perimeter and area of a rectangle of cardboard measuring 18.2 cm by 6.2 cm

Answer 1

Perimeter = length + length + width + width
Substitute values in (18.2 is length, 6.2 is width)
Perimeter = 18.2 + 18.2 + 6.2 + 6.2
Perimeter = 48.8

Area = length x width
Sub in values
Area = 18.2 x 6.2
Area = 112.84