Question

A rectangle 11.5 cm long and 4.5 cm wide has a perimeter of -------- cm

Answer 1

Perimeter = (length*2)+(width*2) 11.5 * 2 = 23, 4.5 * 2 = 9, 23+9 = 32 cm perimeter

Answer 2

2(l+ b) =2(11.5+4.5) = 2×16= 32 cm