The figure shows a rectangular piece of paper 50 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 F, G and H in Figure 2.
(a)
Area of the rectangular piece of paper
= 50 x 7
= 350 cm
2 (b)
Areas of J and K
= 7 x 7
= 49 cm
2 Total area of F, G, and H
= 350 - 49
= 301 cm
2 Answer(s): (a) 350 cm
2; (b) 301 cm
2