Two rectangles W and X, not drawn to scale, overlap at Y. Y is the shaded area which is
17 of Rectangle W and
110 of Rectangle X. If the length of Rectangle W is 14 cm and its breadth is 5 cm, what is the area of the unshaded part of rectangles W and X?
|
W |
X |
Difference |
Total areas |
7 u |
10 u |
3 u |
Shaded part |
- 1 u |
- 1 u |
|
Unshaded parts |
6 u |
9 u |
3 u |
The overlapping shaded part of rectangles W and X is the same.
Area of Rectangle W
= 14 x 5
= 70 cm
2 Area of Rectangle W = 7 u
Area of Rectangle X = 10 u
7 u = 70
1 u = 70 ÷ 7 = 10
Area of unshaded parts of rectangles W and X
= 6 u + 9 u
= 15 u
= 15 x 10
= 150 cm
2 Answer(s): 150 cm
2