The figure shows a rectangular piece of paper 45 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 E, F and G in Figure 2.
(a)
Area of the rectangular piece of paper
= 45 x 6
= 270 cm
2 (b)
Areas of H and J
= 6 x 6
= 36 cm
2 Total area of E, F, and G
= 270 - 36
= 234 cm
2 Answer(s): (a) 270 cm
2; (b) 234 cm
2