Proportions With Polygon

Find the scale factor of ΔMNP to ΔDEF

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 

• proportional, congruent 

• congruent, congruent

• proportional, proportional

Pentagon JKLMN is similar to pentagon VWXYZ.
What is the measurement of angle X?

• 30 degrees

• 60 degrees

• 150 degrees

• 120 degrees

Solve for x. 

• 8

• 6

• 10

• 12

Two polygons are similar. The perimeter of the first polygon is 72 inches. The perimeter of the second polygon is 90 inches. What is the scale factor of the first polygon to the second polygon?

• 72 : 90

• 90 : 72

• 4 : 5

• 5 : 4

• P = 85 feet

• P = 106.25 feet

• P = 68 feet

Are the two figures similar

• yes

• no

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

Let triangle XYZ be the dilated image of triangle ABC with a scale factor of k = 3. Which of the following is the correct center of dilation?

• (0, 0)

• (4, 1)

• (-5, 5)

• (1, 4)

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these