The figure is made up of 3 squares of side 6 cm, 7 cm and 15 cm. Find
- the perimeter of the figure.
- the area of the figure.
(a)
Perimeter of the figure
= 4 x 15 + 2 x 7 + 2 x 6 + 2 x (7 - 6)
= 4 x 15 + 2 x 7 + 2 x 6 + 2 x 1
= 60 + 14 + 12 + 2
= 88 cm
(b)
Area of the figure
= 15 x 15 + 6 x 6 + 7 x 7
= 225 + 36 + 49
= 310 cm
2 Answer(s): (a) 88 cm; (b) 310 cm
2