Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 15) + (4 x 4) + (4 x 5)
= 60 + 16 + 20
= 96 cm
(b)
Length of AB
= 15 - 5 - 5
= 5 cm
Length of CD
= 15 - 4 - 4
= 7 cm
Area of the figure
= (15 x 15) - (2 x (5 x 4)) - (2 x (7 x 5))
= 225 - 40 - 70
= 115 cm
2 Answer(s): (a) 96 cm; (b) 115 cm
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