Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 18) + (4 x 3) + (4 x 5)
= 72 + 12 + 20
= 104 cm
(b)
Length of AB
= 18 - 5 - 5
= 8 cm
Length of CD
= 18 - 3 - 3
= 12 cm
Area of the figure
= (18 x 18) - (2 x (8 x 3)) - (2 x (12 x 5))
= 324 - 48 - 120
= 156 cm
2 Answer(s): (a) 104 cm; (b) 156 cm
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