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Warm up. Identify the Property 1 . AB  CD given CD  AB __________________ 2 . AB = CD given AB + BC = CD + BC __________________ 3 .  B   C and  C   D given  B   D __________________. Plan of reasoning to complete geometric proofs

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Presentation Transcript
warm up
Warm up

Identify the Property

1. AB  CD given

CD  AB __________________

2. AB = CD given

AB + BC = CD + BC __________________

3. B  C and C  D given

B  D __________________

section 2 4 continued proofs
Plan of reasoning to complete geometric proofs

What is given, what can be assumed from the diagram?

What conclusions can be made from each given statement?

What reason can you give to justify each conclusion?

What order can you prove these conclusions?

e) How can you arrive at what you are asked to prove?

2.4 Building a System of Geometry Knowledge

Section 2-4 continued Proofs
proof
5. Given: PQ bisects AB at point R and AR  RQ

Prove: RB  RQ

2.4 Building a System of Geometry Knowledge

Proof

Q

A

R

B

P

proof1
Statements Reasons

2.4 Building a System of Geometry Knowledge

Proof
slide6
Statements Reasons

2.4 Building a System of Geometry Knowledge

assignment
Intro to Proof Worksheet

2.4 Building a System of Geometry Knowledge

assignment
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