Mathematics for IGCSE & O level - Mensuration (Section 12 - No. 32)
A rectangle has a length of 7cm and width of 4cm. What is the perimeter?
11cm
14cm
22cm
28cm
설명
Perimeter of a rectangle = 2(length+width). Perimeter = 2(7cm + 4cm) = 2 * 11 = 22 cm.