Geometry Triangle Proof Ideas

A triangle with two congruent sides and two congruent angles (base angles) is called ...

• scalene

• equilateral

• isosceles

• obtuse

Tags

CCSS.4.G.A.2

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

• AD=DA

• AN = AH

• HD=ND

• HD=DN

Tags

CCSS.HSG.SRT.B.5

What is reason #3?

• SAS

• ASA

• SSS

• AAS

Tags

CCSS.HSG.SRT.B.5

What is Statement?

• ∠MNL ≌ ∠ONP

• MN ≌ ON

• N ≌ N

• MO ≌ OM

Tags

CCSS.HSG.SRT.B.5

What is Reason?

• Alternate Exterior Angles

• Alternate Interior Angles

• Vertical Angles

• Angle Bisector

Tags

CCSS.HSG.SRT.B.5

Which of the following is a correct statement and reason for the proof shown?

Tags

CCSS.HSG.SRT.B.5

State if the two triangles are congruent.  If they are, state how you know.

• A

• B

• C

• D

Tags

CCSS.HSG.SRT.B.5

What is the "statement" for step 2 of the proof?

• AD=AD

• AD=DA

• HD=DN

• HA = AN

Tags

CCSS.HSG.SRT.B.5

What is the justification (reason)?

• reflexive property

• definition of segment bisect

• definition of a midpoint

• substitution property

Tags

CCSS.HSG.CO.C.10

What triangle congruence criteria is shown in the given diagram?

• ASA

• AAS

• SSA

• HL

Tags

CCSS.HSG.SRT.B.5