The figure shows a rectangular piece of paper 27 cm by 4 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 D, E and F in Figure 2.
(a)
Area of the rectangular piece of paper
= 27 x 4
= 108 cm
2 (b)
Areas of G and H
= 4 x 4
= 16 cm
2 Total area of D, E, and F
= 108 - 16
= 92 cm
2 Answer(s): (a) 108 cm
2; (b) 92 cm
2