Similarity and Scale

What is the scale factor from the left triangle to the right triangle?

(a)  

Tags

CCSS.7.G.A.1

All angles in similar figures are congruent.  

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What side corresponds with AB? 

• BC

• FE

• DE

• FD

Tags

CCSS.HSG.SRT.A.2

Are the following similar?
Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, corresponding sides are NOT in proportion.

• i dont know

Tags

CCSS.HSG.SRT.A.2

Find missing side

• 5

• 7

• 9

• 11

Tags

CCSS.HSG.SRT.A.2

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Tags

CCSS.HSG.SRT.A.2

Triangle ABC is dilated with a scale factor of 1/2.  What is the ordered pair for C’?

• C’ (2 , 1)

• C’ (-2 , 1)

• C’ (2 , -1)

• C’ (-2 , -1)

Tags

CCSS.8.G.A.3

What is the scale factor?

• 4/7

• 7/4

• 5/3

• 2/5

Tags

CCSS.HSG.SRT.A.2

CCSS.8.G.A.4

A triangle has a side length of 4 inches and an area of 18 square inches and a larger similar triangle has a corresponding side length of 8 inches. What scale factor was used to dilate the smaller triangle to the larger one?

• Enlargement by a scale factor of 18

• Reduction by a scale factor of .25

• Reduction by a scale factor of 1/2

• Enlargement by a scale factor of 2

Tags

CCSS.7.G.A.1

Use the diagram to the right to determine the distance across  Catfish Lake. Assume the triangles are similar. 

• 6.75 km

• 4.1 km

• 2 km

• 3 km

Tags

CCSS.HSG.CO.C.9