Question

5. If the scale factor of Figure A to Figure B is
7:2, find the perimeter of Figure A.

Answer 1

122.5 units

Explanation:

The perimeter of Figure B is the sum of its side lengths:

12 + 9 + 5 + 9 = 35

The perimeter of Figure A is that value multiplied by the scale factor:

(7/2)(35 units) = 122.5 units