The figure shows a rectangular piece of paper 30 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 U, V and W in Figure 2.
(a)
Area of the rectangular piece of paper
= 30 x 6
= 180 cm
2 (b)
Areas of X and Y
= 6 x 6
= 36 cm
2 Total area of U, V, and W
= 180 - 36
= 144 cm
2 Answer(s): (a) 180 cm
2; (b) 144 cm
2