Similarity Parallel Lines

QR is a midsegment of triangle WUV. What is the length of segment QR?

• 4

• 8

• 16

• 32

QR is a midsegment of triangle BCD. Solve for the value of x.

• 11

• 18

• 9

• -7

• x = 10, y = 8

• x = 7.5, y = 10

• x = 10, y = 7.5

• x = 8, y = 10

Which of the following would you use to prove the two triangles are similar?

• SAS

• SSS

• AA

What is the scale factor from ΔABC to ΔXYZ?

• 1.25

• 1.5

• 2

• 2.5

What do the arrows on these triangles represent?

• Perpendicular lines

• Parallel lines

• Transversals

• Congruent

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

Are the triangles similar? If so, what similarity shortcut is used?  Show all work.

• Similar.  SAS

• Similar.  AA

• Similar.  SSS

• Not Similar

Find the missing length.

• 14

• 20

• 16

• 10

State the angle relationship and find the measure of angle 1

• Corresponding
  110

• Alternate Exterior
  110

• Corresponding
  70

• Alternate Exterior
  70