Two rectangles G and H, not drawn to scale, overlap at J. J is the shaded area which is
13 of Rectangle G and
110 of Rectangle H. If the length of Rectangle G is 9 m and its breadth is 6 m, what is the area of the unshaded part of rectangles G and H?
| |
G |
H |
Difference |
| Total areas |
3 u |
10 u |
7 u |
| Shaded part |
- 1 u |
- 1 u |
|
| Unshaded parts |
2 u |
9 u |
7 u |
The overlapping shaded part of rectangles G and H is the same.
Area of Rectangle G
= 9 x 6
= 54 m
2 Area of Rectangle G = 3 u
Area of Rectangle H = 10 u
3 u = 54
1 u = 54 ÷ 3 = 18
Area of unshaded parts of rectangles G and H
= 2 u + 9 u
= 11 u
= 11 x 18
= 198 m
2 Answer(s): 198 m
2 
