The figure is made up of 3 squares of side 4 cm, 9 cm and 11 cm. Find
- the perimeter of the figure.
- the area of the figure.
(a)
Perimeter of the figure
= 4 x 11 + 2 x 9 + 2 x 4 + 2 x (9 - 4)
= 4 x 11 + 2 x 9 + 2 x 4 + 2 x 5
= 44 + 18 + 8 + 10
= 80 cm
(b)
Area of the figure
= 11 x 11 + 4 x 4 + 9 x 9
= 121 + 16 + 81
= 218 cm
2 Answer(s): (a) 80 cm; (b) 218 cm
2