The figure shows a rectangular piece of paper 36 cm by 6 cm which is coloured on one side. It is folded along the dotted line to form Figure 2.
- Find the area of the rectangular piece of paper.
- Find the total area of K, L and M in Figure 2.
(a)
Area of the rectangular piece of paper
= 36 x 6
= 216 cm
2 (b)
Areas of N and P
= 6 x 6
= 36 cm
2 Total area of K, L, and M
= 216 - 36
= 180 cm
2 Answer(s): (a) 216 cm
2; (b) 180 cm
2