Reasons for Proofs

Flashcard
•
Mathematics
•
9th - 10th Grade
•
Hard
+6
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What does a proof always start with?
Back
Given Statement(s)
2.
FLASHCARD QUESTION
Front
If DB bisects ∠ABC, then ∠ABD = ∠CBD.
Back
Definition of Angle Bisector
Tags
CCSS.HSG.CO.C.9
3.
FLASHCARD QUESTION
Front
If B is the midpoint of AC, then AB ≅ BC.
Back
Definition of Midpoint
Tags
CCSS.HSG.GPE.B.6
4.
FLASHCARD QUESTION
Front
If ∠1 = ∠2 and ∠2 = ∠3, then ∠1 = ∠3.
Back
Transitive Property of Equality
Tags
CCSS.HSG.SRT.B.5
5.
FLASHCARD QUESTION
Front
What should the reasons be for the first 2 statements?
Back
Given
6.
FLASHCARD QUESTION
Front
What is the definition of congruent angles?
Back
Angles that have the same measure.
Tags
CCSS.8.G.A.2
7.
FLASHCARD QUESTION
Front
What is the Angle Addition Postulate?
Back
If point B is in the interior of ∠AOC, then ∠AOB + ∠BOC = ∠AOC.
Tags
CCSS.4.MD.C.7
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