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 1 : 10 while the shaded area is
310 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 |
10x13 |
13x10 |
1x13 |
10x13 |
3x10 |
10x10 |
13 u |
130 u |
30 u |
100 u |
The total area is repeated. Make the total area the same. LCM of 10 and 13 is 130.
Shaded area: Area of smallest square
30 : 13
Answer(s): 30 : 13