Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 12) + (4 x 3) + (4 x 4)
= 48 + 12 + 16
= 76 cm
(b)
Length of AB
= 12 - 4 - 4
= 4 cm
Length of CD
= 12 - 3 - 3
= 6 cm
Area of the figure
= (12 x 12) - (2 x (4 x 3)) - (2 x (6 x 4))
= 144 - 24 - 48
= 72 cm
2 Answer(s): (a) 76 cm; (b) 72 cm
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