Similar Polygons/Proving Triangles Similar

a comparison of two quantities

• proportion

• ratio

• similarity ratio

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

an equation that states that two ratios are equal

• geometric mean

• proportion

• ratio

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Are the triangles similar?

• Yes
• No

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.B.5

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW
• ΔXZY~ΔNWE
• ΔZYX~ΔENW
• ΔYZX~ΔNWE

Tags

CCSS.HSG.SRT.A.2

Similarity Ratio: _

• 2/3
• 1/2
• 2
• 3

Tags

CCSS.HSG.SRT.A.2

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Are these triangles similar?
Angles in Triangle 1:  40⁰,60⁰, and 80⁰
Angles in Triangle 2:  40⁰,50⁰, and 90⁰

• Yes
• No
• There is not enough information to decide.

Tags

CCSS.HSG.SRT.A.2

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger

figure.

• a

• b

Tags

CCSS.7.G.A.1

Find the value of x:

• 58.3
• 1.7
• 21
• 18

Tags

CCSS.HSG.SRT.B.5