5.5 Geo Sup Proofs Triangle Similarity

Determine whether the triangles are similar(name the postulate or theorem you used).

• SSS similar
• AA similar
• SAS similar

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CCSS.HSG.SRT.B.5

Complete each proportion.
CB / DM  =  AC / ?

• BM
• MA
• BC
• AD

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CCSS.HSG.SRT.B.4

Complete each proportion.
AB / BM  =  ? / CD

• BC
• AC
• MD
• MC

Tags

CCSS.HSG.SRT.B.4

Complete the similarity statement.
ABC ~ ___

• ZYX
• XZY
• YZX
• XYZ

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CCSS.HSG.SRT.A.2

2 triangles are similar if _____________.

• their angles are congruent.
• their sides are congruent.
• their areas are equal.
• their perimeters are equal.

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

How many pairs of congruent angles in 2 triangles are needed to prove the 2 triangles are similar?

• 2 or 3
• 1
• 0
• only 3

Tags

CCSS.HSG.SRT.B.5

Similarity Ratio: _

• 2/3
• 1/2
• 2
• 3

Tags

CCSS.HSG.SRT.A.2

What is the "reason" for step 5 of the proof?

• Angle Bisector Theorem
• Reflexive property
• CPCTC Theorem
• Proof

Tags

CCSS.HSG.SRT.B.5

What does CPCTC stand for?

• Corresponding Parts of Congruent Triangles are Congruent
• Congruent Parts of Congruent Triangles are Corresponding
• Colorful Pieces of Corresponding Triangles are Congruent
• Congruent Pieces of Congruent Triangles are Congruent

Tags

CCSS.HSG.SRT.B.5

What is the missing piece of information required to prove these triangles congruent?

• QY ≅ QY
• NY ≅ PY
• ∠N ≅ ∠P
• QY is the perpendicular bisector

Tags

CCSS.HSG.SRT.B.5