Similarity and Parallel

What does congruent mean?

• Same shape, different size

• Same size, same shape

• Not the same shape

• Not the same shape, but similar size

All angles in similar figures are congruent.

• True

• False

If you figures are similar, the corresponding sides are _____________.

• equal

• congruent

• proportional

• none of these

When you dilate a figure you...

• slide it.

• flip it.

• turn it.

• make it larger or smaller.

If the scale factor is less than one, the new figure will be

• an enlargement

• a scale factor

• a reduction

• stays the same

Are the triangles similar?

• Yes

• No

Find x.

• 21

• 13

• 27/7

• 18

If the object on the left is the ORIGINAL size and the object on the right is the NEW size, what is the scale factor?

• 0.4

• 1.5

• 2.5

• 5

Find the length of "q" and "p"

• q = 12

  p = 10

• q = 8

  p = 6

• q = 24

  p = 18

• q = 2

  p = 0.5

Rachelle notices that a 2-meter pole casts a shadow of 5 meters, and a second pole casts a shadow of 9.4 meters.  How tall is the second pole?

HINT: Find your scale factor and CROSS MULTIPLY.

• 3m

• 3.76m

• 4.2m

• 4.39m