Chapter 9 Review Quizizz

What does it mean for two shapes to be similar?

• Their angles add up to 180^o.

• They are congruent.

• Same shape, but different size.

• Same size and same shape.

State if the polygons are similar.

1. Sides are 4 and 5

2. Sides are 10 and 14

• Similar

• Not Similar

State if the polygons are similar.

1. Sides are 25 and 30

2. Sides are 20 and 24

• Similar

• Not similar

Which triangle is similar to the above triangle?

Blue Triangle: 12 x 9

• A: 16 x 12

• B: 20 x 30

• C: 10 x 15

• D: 9 x 6

Are the triangles similar?

• Yes
• No

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger figure.

• 8:9

• 2:3

• 1:7

• 5:8

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger figure.

• 1:4

• 5:9

• 5:8

• 7:9

• 35

• 89

• 56

• 40

Find side length X.

• 30
• 25
• 15
• 40

Find side length X.

• 16
• 18
• 2.4
• 15