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20 questions
The scale factor of two similar figures is 4 : 5. What is the ratio of their perimeters?
4 : 5
16 : 25
64 : 125
8 : 10
If the ratio of 2 round dinner plates is 2 : 5, what is the ratio of their areas?
2 : 5
1 : 5
4 : 10
4 : 25
Two hexagons are similar with a scale factor of 4/5. If the area of the larger hexagon is 20, what is the area of the smaller hexagon?
10.24
12.8
16
25
What is the area ratio of the following rectangles?
10/7
100/49
100/36
4/36
A figure is dilated by a scale factor of 4. Which of the following statements about the figure must be true?
The perimeter and area are both multiplied by 4.
The perimeter is multiplied by 4 and the area is multiplied by 16.
The perimeter and area are both divided by 4.
The perimeter is multiplied by 16 and the area is multiplied by 4.
The figures are similar. What is the ratio of their perimeters?
18/24
3/4
1/2
36/24
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