Similarity and Slope

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.8.G.A.1

CCSS.8.G.A.4

CCSS.8.G.A.5

The measures of the angles in a triangle are 53⁰,78⁰, and 49⁰.  A similar triangle is created by using a dilation with a scale factor of 2.  What are the measures of the angles of this triangle?

• 53⁰,78⁰, and 49⁰
• There is not enough information to answer this question.
• 106⁰,156⁰, and 98⁰
• 26.5⁰,39⁰, and 24.5⁰

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

CCSS.8.G.A.5

Are the triangles similar?

• Yes
• No

Tags

CCSS.HSG.SRT.A.2

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

CCSS.8.G.A.4

The point (2, 3) was dilated to become point (8, 12). What was the scale factor?

• ½

• ¼

• 4

• 2

Triangle ABC is dilated using center (0, 0) and a scale factor of 2. Where is the image of Point C?

• (12,0)

• (12,12)

• (4,3)

• (6,4)

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle ABC was dilated using (0, 0) as center, creating triangle A'B'C'. What scale was used?

• 2

• 1/2

• 1/3

• 1/4

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Find the slope of the line.

• 1/4

• 5

• 1/5

• 4/1

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.2

CCSS.8.SP.A.3

Find the slope

• 5/2

• 7

• 2/5

• 1/7

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

What is the slope of the line shown?

• 8

• 2

• 6

• 5

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3