Similar Triangles Proof

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

What is the "statement" for step 3 of the proof?

• AD=DA

• AN = AH

• HD=ND

• HD=DN

What is the "reason" for step 3 of the proof?

• Vertical Angle Theorem

• given

• reflexive property

• proof

When proving these triangles similar, what would you write in for the missing reason?

• Math

• Corresponding sides are proportional

• Corresponding sides are congruent

• SSS similarity postulate

What reasons complete the proof?

• Given, AA Similarity Postulate

• Vertical Angle Theorem, AA Similarity Postulate

• Reflexive Property, SAS Similarity Postulate

• Definition of Angle Bisector, SSS Similarity Postulate

What additional information can we conclude from the given and why?

• ∠ADB and ∠ADC are right angles because AD goes straight down.

• ∠B≅∠C because the triangle is isosceles

• ∠BAD≅∠CAD because they look the same

• None of the above

Which is NOT a way to prove triangles similar?

• AA

• SSS

• ASA

• SAS

In similar triangles, corresponding angles are ___________.

• similar

• congruent

• overlapping

• proportional

What will the last "reason" of this proof be?

• Definition of Midpoint

• Definition of Angle Bisector

• CPCTC

• Reflexive

In similar triangles, corresponding sides are ___________.

• similar

• congruent

• overlapping

• proportional