Two rectangles Z and A, not drawn to scale, overlap at B. B is the shaded area which is
16 of Rectangle Z and
110 of Rectangle A. If the length of Rectangle Z is 8 cm and its breadth is 6 cm, what is the area of the unshaded part of rectangles Z and A?
|
Z |
A |
Difference |
Total areas |
6 u |
10 u |
4 u |
Shaded part |
- 1 u |
- 1 u |
|
Unshaded parts |
5 u |
9 u |
4 u |
The overlapping shaded part of rectangles Z and A is the same.
Area of Rectangle Z
= 8 x 6
= 48 cm
2 Area of Rectangle Z = 6 u
Area of Rectangle A = 10 u
6 u = 48
1 u = 48 ÷ 6 = 8
Area of unshaded parts of rectangles Z and A
= 5 u + 9 u
= 14 u
= 14 x 8
= 112 cm
2 Answer(s): 112 cm
2