8th Grade - Unit 2 Test Review

Dilations create ​ (a)   figures that have the ​ (b)   angles and different, but proportional, ​ (c)   .

• similar
• same
• sides
• different

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Similar figures...

• Figures that have the same shape but not necessarily the same size.
• Figures that have neither the same shape nor size.
• Figures that have both the same shape and size.
• Figures that have the same size but not necessarily the same shape.

Tags

CCSS.8.G.A.4

CCSS.8.G.A.5

What is the scale factor that dilated ABC to A'B'C' ?

• 2

• 3

• 4

• 6

Answer explanation

Each point on ABC was multiplied by SF of 3 to move to that circle!

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

When you are given a side length of a shape, you would ​ (a)   by the scale factor to find the NEW side length of the image shape.

• multiply
• divide
• add
• subtract

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Given the following triangles ARE SIMILAR. Label the missing measurements.

e

f

8

11

5

6

4

7.5

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

CCSS.8.G.A.5

Dilate Triangle ABC by a scale factor of 1/2 with Point A as the center of dilation.

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

CCSS.8.G.A.5

These are ​ (a)   triangles because they have the ​ (b)   shape but ​ (c)   size. The sides are ​ (d)   .

• similar
• congruent
• same
• different
• proportional

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

A triangle has sides of 2 cm, 5cm, and 6 cm. Sort if the following triangles would be similar or not.

Groups:

(a) Similar Triangle

,

(b) NOT Similar

• 8, 20, 22

• 6, 15, 18

• 4, 7, 8

• 4, 10, 12

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What is the slope of the line?

• 4/5

• 5/4

• 3/4

• 4/3

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

What is the slope?

• 5/3

• 3/5

• 6/3 = 2

• 5/4

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3