The figure shows a rectangular piece of paper 43 cm by 7 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 H, J and K in Figure 2.
(a)
Area of the rectangular piece of paper
= 43 x 7
= 301 cm
2 (b)
Areas of L and M
= 7 x 7
= 49 cm
2 Total area of H, J, and K
= 301 - 49
= 252 cm
2 Answer(s): (a) 301 cm
2; (b) 252 cm
2