Question

Exercise 7

a) Find the perimeter of a square whose side is 9 cm.
b) Find the perimeter of a rectangle of length 25 cm and width 7 cm.
c) Calculate the length of a rectangle whose perimeter is 44 cm and width is 8
cm.
d) Calculate the width of a rectangle whose perimeter is 24 cm and length is 10
cm.
e) Draw a square of side 5 cm.

Answer 1

a) 36

b) 64

c) 14

d) 2

solution:

a)9 x 4= 36

b) 25 + 25 + 7 + 7 = 64

c) 8 + 8 = 16, 44-16 = 28, 28/2 = 14

d) 10 + 10 = 20, 24-20 = 4, 4/2 = 2