Study the figure.
- Find the perimeter of one small rectangle.
- Find the perimeter of the whole figure.
(a)
Length = 3 u
Breadth = 1 u
4 u = 52
1 u = 52 ÷ 4 = 13
3 breadth = 1 length of the small rectangle
= 3 x 13
= 39 cm
Perimeter of one small rectangle
= 39 + 13 + 39 + 13
= 104 cm
(b)
Length of the large rectangle
= 4 u
= 4 x 13
= 52 cm
Perimeter of whole figure
= 52 + 39 + 52 + 39
= 182 cm
Answer(s): (a) 104 cm; (b) 182 cm