Given the figure that is not drawn to scale, find
- its perimeter.
- its area.
(a)
Perimeter of the figure
= (4 x 19) + (4 x 4) + (4 x 6)
= 76 + 16 + 24
= 116 cm
(b)
Length of AB
= 19 - 6 - 6
= 7 cm
Length of CD
= 19 - 4 - 4
= 11 cm
Area of the figure
= (19 x 19) - (2 x (7 x 4)) - (2 x (11 x 6))
= 361 - 56 - 132
= 173 cm
2 Answer(s): (a) 116 cm; (b) 173 cm
2