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8.1 Perimeter and Area of Similar Figures

Last updated over 1 year ago
8 questions
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.
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?

1

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?

1

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?

1

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.
1

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?

1

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?

1

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?

1

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?