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

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