Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 15) + (4 x 3) + (4 x 5)
= 60 + 12 + 20
= 92 cm
(b)
Length of AB
= 15 - 5 - 5
= 5 cm
Length of CD
= 15 - 3 - 3
= 9 cm
Area of the figure
= (15 x 15) - (2 x (5 x 3)) - (2 x (9 x 5))
= 225 - 30 - 90
= 105 cm
2 Answer(s): (a) 92 cm; (b) 105 cm
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