Unit 4 - Extra Review

ABCD ~ EFGH. Select all statements that apply.

• ∠B ≅ ∠F

• The perimeter of ABCD is congruent to the perimeter of EFGH

• ∠A ≅ ∠E

• $\frac{AB}{EF}=\frac{BC}{FG}$

• $\frac{CD}{GH}=\frac{EF}{AB}$

Find the scale factor from Figure A to Figure B.

• k = -2

• k = 2

• k = 1/2

• k = 1/3

Triangle PQR is similar to Triangle FGH. Find the value of x.

• x = 12/5

• x = 1

• x = 2

• x = 4

Triangle ABC is dilated using a scale factor of 1/2. What are the new coordinates of point A'?

• (-3, 3)
• (-12, 12)
• (-2, 2)

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Tags

CCSS.8.G.A.3

Select all the scale factors below that would result in a REDUCTION.

• 1/3

• 4/5

• 3/2

• 0.75

• 5/4

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Tags

CCSS.HSG.SRT.B.5

Determine whether the triangles are similar.

• SSS
• AA
• SAS
• not similar

Tags

CCSS.HSG.SRT.B.5

If the triangles are similar, state how.

• AA

• SAS

• SSS

• Not similar

Tags

CCSS.HSG.SRT.B.5

A map has a scale of 3 cm:18km.  If Oakdale and Woodridge are 54 km apart, then they are how far apart on the map?

• 15 cm
• 8.7 cm
• 9 cm
• 6 cm

Tags

CCSS.7.G.A.1