Two rectangles B and C, not drawn to scale, overlap at D. D is the shaded area which is
18 of Rectangle B and
110 of Rectangle C. If the length of Rectangle B is 14 m and its breadth is 8 m, what is the area of the unshaded part of rectangles B and C?
|
B |
C |
Difference |
Total areas |
8 u |
10 u |
2 u |
Shaded part |
- 1 u |
- 1 u |
|
Unshaded parts |
7 u |
9 u |
2 u |
The overlapping shaded part of rectangles B and C is the same.
Area of Rectangle B
= 14 x 8
= 112 m
2 Area of Rectangle B = 8 u
Area of Rectangle C = 10 u
8 u = 112
1 u = 112 ÷ 8 = 14
Area of unshaded parts of rectangles B and C
= 7 u + 9 u
= 16 u
= 16 x 14
= 224 m
2 Answer(s): 224 m
2