Two rectangles A and B, not drawn to scale, overlap at C. C is the shaded area which is
15 of Rectangle A and
110 of Rectangle B. If the length of Rectangle A is 14 m and its breadth is 5 m, what is the area of the unshaded part of rectangles A and B?
|
A |
B |
Difference |
Total areas |
5 u |
10 u |
5 u |
Shaded part |
- 1 u |
- 1 u |
|
Unshaded parts |
4 u |
9 u |
5 u |
The overlapping shaded part of rectangles A and B is the same.
Area of Rectangle A
= 14 x 5
= 70 m
2 Area of Rectangle A = 5 u
Area of Rectangle B = 10 u
5 u = 70
1 u = 70 ÷ 5 = 14
Area of unshaded parts of rectangles A and B
= 4 u + 9 u
= 13 u
= 13 x 14
= 182 m
2 Answer(s): 182 m
2