Geometry Unit 5 Review

Which is the best definition of similarity?

• If two figures have congruent corresponding angles, they are similar.

• If two figures have proportional side lengths, they are similar.

• If there's a sequence of rigid transformations that take one figure to another, they are similar.

• If there's a sequence of rigid transformations and dilations that take one figure to another, they are similar.

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Determine the scale factor from the left figure to the right figure.

• 4/3

• 3/4

• 2/3

• 3/2

Tags

CCSS.7.G.A.1

What is the scale factor from triangle ADE to triangle ACB?

• 2

• 3

• 4/3

• 5/3

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Which pair of polygons is definitely similar?

• 
• 
• 
• 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the value of a?

• 1.25

• 1.5

• 1.875

• 2

Tags

CCSS.HSG.SRT.A.2

Triangle DEF is formed by connecting the midpoints of the sides of triangle ABC. The lengths of the sides of DEF are shown. What is the length of BC?

• 8

• 12

• 15

• 18

Tags

CCSS.HSG.SRT.B.4

• 40 degrees

• 60 degrees

• 65 degrees

• 75 degrees

Tags

CCSS.HSG.CO.C.10

Right angle ABC is taken by a dilation with center P and scale factor 1/3 to angle A'B'C'. What is the measure of angle A'B'C'?

• 90 degrees

• 60 degrees

• 30 degrees

• 180 degrees

Tags

CCSS.8.G.A.3

A polygon has perimeter 24. It is dilated with a scale factor of k and the resulting image has a perimeter of 18. What is the scale factor?

• 4/3

• 3/4

• 2/3

• 3/2

Tags

CCSS.7.G.A.1

If the perimeter of triangle MNL is 24 units, what is the perimeter of triangle CBA?