The figure is made up of 3 squares of side 4 cm, 8 cm and 13 cm. Find
- the perimeter of the figure.
- the area of the figure.
(a)
Perimeter of the figure
= 4 x 13 + 2 x 8 + 2 x 4 + 2 x (8 - 4)
= 4 x 13 + 2 x 8 + 2 x 4 + 2 x 4
= 52 + 16 + 8 + 8
= 84 cm
(b)
Area of the figure
= 13 x 13 + 4 x 4 + 8 x 8
= 169 + 16 + 64
= 249 cm
2 Answer(s): (a) 84 cm; (b) 249 cm
2