The figure shows a rectangular piece of paper 57 cm by 8 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
= 57 x 8
= 456 cm
2 (b)
Areas of H and J
= 8 x 8
= 64 cm
2 Total area of E, F, and G
= 456 - 64
= 392 cm
2 Answer(s): (a) 456 cm
2; (b) 392 cm
2