Unit 6-1 to 6-3 Review

The ratios of the measure of the interior angles of a triangle is 14:5:11. What is the equation that describe these angles?

• 14 + 5 + 11 = 180x

• 14 - 5 - 11 = 180x

• 14x + 5x + 11x = 180

• 11x + 5x > 14x

The ratio of the measures of the side of a triangle is 9:7:3. The perimeter is 266 in. Which equation that can be used to find the length of the triangle?

• 3x+7x+9x = 266

• 0.5(3+7+9)x = 266

• 3x + 7x + 9x = 180

• 3x +7x > 9x

What is the scale factor from ΔDEF to ΔABC?

• 1/2
• 7/3
• 2
• 10/3

Tags

CCSS.7.G.A.1

Solve for x.

• x = 5
• x = 3
• x = 14
• x = 1

Tags

CCSS.7.G.B.5

x =

• 10

• 15

• 20

• no solution

The triangles are similar, solve for the question mark.

• 8
• 12.5
• 18
• 24

Tags

CCSS.HSG.SRT.A.2

Determine whether the triangles are similar.

• SSS~
• AA~
• SAS~
• not similar

Tags

CCSS.HSG.SRT.B.5

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

Complete each proportion.
AB / BM  =  ? / CD

• BC
• AC
• MD
• MC

Tags

CCSS.HSG.SRT.A.2

Determine if the triangles are similar. Justify.

• Yes, by SSS.
• Yes, by SAS. Scale Factor is 1:2.
• Yes, by SAS. Scale Factor is 3:1.
• No, not similar.

Tags

CCSS.HSG.SRT.B.5

How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)

• AA
• SAS
• SSS
• Not Similar

Tags

CCSS.HSG.SRT.B.5