Similar Shapes, Corresponding Sides and Angles, Scale Factors

Sides in similar figures must be proportsional.  

• True

• False 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Determine if the triangles are similar, and if so, by which theorem.

• AA

• SSS

• SAS

• Not Similar

Tags

CCSS.HSG.SRT.B.5

All angles in similar figures are congruent.  

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

A dilation always produces a similar figure. Similar figures have the same ______ but different ______. 

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

Tags

CCSS.8.G.A.3

Is this an enlargement or a reduction?

• Enlargement

• Reduction

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

Tags

CCSS.8.G.A.3

What scale factor was used to produce the green image? (the blue triangle was the original image)

• 2

• -2

• ¹/₂

• 1

Tags

CCSS.7.G.A.1

What is the scale factor to go from triangle ABC to triangle A'B'C'?

• k = 2

• k = 1/2

• Center (0,0)

• (0,2)

Tags

CCSS.HSG.CO.A.2

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

Tags

CCSS.HSG.SRT.A.2

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

Tags

CCSS.HSG.SRT.A.2