Similar Figures Quiz Review

Polygons are similar if

• all corresponding angles are congruent, and all corresponding sides are proportional
• all corresponding angles are congruent, and all corresponding sides are congruent
• all sides and angles are proportional

When polygons are similar, the scale factor can be found by

• a ratio of the first polygon's side to the second polygon's corresponding side
• dividing the angle measures
• multiplying one side of the first polygon by one side of the second polygon
• subtracting one side of the first polygon by one side of the second polygon

If RST ~ XYZ, RS = 4, ST = 7, XY = 12, YZ = 21, determine the scale factor.

• 1:3
• 3:1
• 1:4
• 4:1

If polygon WXYZ ~ polygon BCDA, select all of the angles that are congruent to each other. Select all that apply.

• ∠B = ∠W
• ∠X = ∠A
• ∠Y = ∠D
• ∠Z = ∠C

If polygon WXYZ ~ polygon BCDA, which side is proportional to DA?

• YZ
• WX
• XY
• WZ

Is MNO ~ to JKL?

• Yes, the corresponding angles are congruent and the sides are proportional.
• No, corresponding angles are not congruent and sides are not proportional.

Given MNO ~ to JKL, what is the scale factor?

• 2:3
• 3:2
• 4:5
• 5:4

Given MNO ~ JKL, if m∠M = 62 and m∠N = 78, find m∠L.

• 40
• 50
• 62
• 78

Given MNO ~ JKL, find x.

• 8.33

• 7.68

• 5

• 6.25

△ABC ~ △DEF. What is scale factor?