The figure is made up of 3 squares of side 4 cm, 7 cm and 14 cm. Find
- the perimeter of the figure.
- the area of the figure.
(a)
Perimeter of the figure
= 4 x 14 + 2 x 7 + 2 x 4 + 2 x (7 - 4)
= 4 x 14 + 2 x 7 + 2 x 4 + 2 x 3
= 56 + 14 + 8 + 6
= 84 cm
(b)
Area of the figure
= 14 x 14 + 4 x 4 + 7 x 7
= 196 + 16 + 49
= 261 cm
2 Answer(s): (a) 84 cm; (b) 261 cm
2