The pink trapezoid is dilated by a factor of 3. The resulting image is shown in blue. What is the ratio of the perimeters of the two trapezoids? (small:large)

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Answer 1 · 2016-11-04T13:40:24

the perimeter is also dilated by a factor of a 3

ratio of blue to pink#=6:2#

which when simplified is #3:1#

this is the ratio of LENGTHS , so all length measurements are in this ratio

Perimeter is a length measurement too that too is in the ratio #3:1#

so the perimeter is also dilated by a factor of a 3