10/29/2020
Unit Activity: Perimeter and Area of Similar Quadrilaterals
Task 2
Perimeter and Area of Similar Quadrilaterals
In this unit, you recognized how the perimeter and the area of similar triangles compare with one another. Let’s
consider whether these ideas apply to quadrilaterals—shapes that have four sides.
Question 1
First you’ll study the perimeters of similar quadrilaterals. Open
perimeter of similar quadrilaterals , and
complete each step below.
Part A
Dilate quadrilateral ABCD with the origin as the center of dilation and a scale factor of 2.5. Record the side
lengths of the corresponding sides in each quadrilateral. Round your answers to the hundredths place. Verify
that the ratio of each side length of A′B′C′D′ to the corresponding side length of ABCD is equal to the dilation
factor.

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