Verison B Practice

Select all the true statements.

• Dilations of a circle result in another circle.

• Dilations of a point will lie on the same line as the point and the center of dilation.

• Dilations of a polygon result in congruent corresponding angles.

• Dilations of a triangle are similar to the original triangle.

• Dilations of a polygon increase the measure of corresponding angles.

Tags

CCSS.8.G.A.3

Which pair of triangles must be similar?

• Triangles 1 and 2 each have a 55° angle.

• Triangles 3 and 4 are both right triangles. Triangle 3 has a 40° angle and Triangle 4 has a 50° angle.

• Triangle 5 has a 20° angle and an 80° angle. Triangle 6 has a 15° angle and an 85° angle.

• Triangle 7 has a 50° angle and a 35° angle. Triangle 8 has a 50° angle and a 115° angle.

Tags

CCSS.HSG.SRT.A.2

Select ALL the lines that have a slope of 3/4

• 
• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

Mai’s teacher asked her to draw a polygon similar to Polygon A. Here is her work. Did Mai correctly draw a similar polygon?

• YES

• NO

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What was specifically wrong with Mai's polygon?

Tags

CCSS.7.G.A.1

Triangle ABC and DEF are similar. What is the scale factor for the triangles?

• 5/3

• 3/2

• 1/2

• 2

Answer explanation

If you divide side length AC and DF, you get the scale factor of 5/3. If you're already given two side lengths that are corresponding, divide them by one another to find the scale factor.

Tags

CCSS.HSG.SRT.A.2

What's the length of segment DE?

• 5/3

• 3/2

• 6/5

• 2

Answer explanation

If you multiply 5/3 by the corresponding side length of 2 (AB), you should get 6/5.

Tags

CCSS.HSG.SRT.A.2

What's the length of segment BC?

• 5/3

• 3/2

• 6/5

• 4

Answer explanation

If you multiply 5/3 by the corresponding side length of 12/5 (FE), you should get 4.

Tags

CCSS.HSG.SRT.A.2