Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 13) + (4 x 2) + (4 x 3)
= 52 + 8 + 12
= 72 cm
(b)
Length of AB
= 13 - 3 - 3
= 7 cm
Length of CD
= 13 - 2 - 2
= 9 cm
Area of the figure
= (13 x 13) - (2 x (7 x 2)) - (2 x (9 x 3))
= 169 - 28 - 54
= 87 cm
2 Answer(s): (a) 72 cm; (b) 87 cm
2