The ratio of perimeters is the same as the scale factor of P to Q, so look in that column and rewrite the ratio (a:b) as a fraction (a/b) to use in your proportion for perimeter.
Question 1
1.
Given the perimeter of P is 23 yards and a scale factor of 2:1 for P to Q, what is the perimeter of figure Q?
Question 2
2.
Given the perimeter of P is 7.2 inches and a scale factor of 8:5 for P to Q, what is the perimeter of figure Q?
Question 3
3.
Given the perimeter of P is 45 feet and a scale factor of 1.5:7 for P to Q, what is the perimeter of figure Q?
Question 4
4.
Given the perimeter of P is 32.9 feet and a scale factor of 1:4 for P to Q, what is the perimeter of figure Q?
The ratio of areas is the square of the scale factor of P to Q, so look in that column and rewrite the ratio (a:b) as a fraction (a2/b2) to use in your proportion for area.
Question 5
5.
Given the area of A is 18 inches2 and a scale factor of 3:4 for A to B, what is the area of figure B?
Question 6
6.
Given the area of A is 37 inches2 and a scale factor of 5:8 for A to B, what is the area of figure B?
Question 7
7.
Given the area of A is 100.86 yards2 and a scale factor of 4.1:1 for A to B, what is the area of figure B?
Question 8
8.
Given the area of A is 53.9 yards2 and a scale factor of 7:9 for A to B, what is the area of figure B?
