Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 16) + (4 x 4) + (4 x 5)
= 64 + 16 + 20
= 100 cm
(b)
Length of AB
= 16 - 5 - 5
= 6 cm
Length of CD
= 16 - 4 - 4
= 8 cm
Area of the figure
= (16 x 16) - (2 x (6 x 4)) - (2 x (8 x 5))
= 256 - 48 - 80
= 128 cm
2 Answer(s): (a) 100 cm; (b) 128 cm
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