This figure is not drawn to scale. It is made up of 3 squares. The ratio of the area of the smallest square to the largest square is 3 : 10 while the shaded area is
12 of the unshaded area. What is the ratio of the shaded area to the area of the smallest square?
Smallest square |
Largest Square |
Shaded area |
Unshaded area |
10x3 |
3x10 |
3x3 |
10x3 |
1x10 |
2x10 |
9 u |
30 u |
10 u |
20 u |
The total area is repeated. Make the total area the same. LCM of 10 and 3 is 30.
Shaded area: Area of smallest square
10 : 9
Answer(s): 10 : 9