Introduction to Proof

Question 1

A flow chart has 4 boxes. The top box is labeled given and contains angle A is-congruent-to angle B, angle C is congruent to angle B. The second box is labeled symmetric property and contains angle B is-congruent-to angle C. The third box is labeled question mark and contains angle A is congruent to angle C. The fourth box is labeled definition of congruent to angle x and contains m angle A = m angle C.

Revolt · Accepted Answer

transitive property

Question 2

Given that RT ≅ WX, which statement must be true?

Revolt · Accepted Answer

RT + TW = WX + TW

Question 3

Given that D is the midpoint of AB and K is the midpoint of BC, which statement must be true?

Revolt · Accepted Answer

AK + BK = AC

Question 4

A two-column proof

Revolt · Accepted Answer

contains a table with a logical series of statements and reasons that reach a conclusion.

Question 5

A horizontal line has points D, B, C. A line extends vertically from point B to point A.

Revolt · Accepted Answer

m∠ABD = m∠ABC

Question 6

A paragraph proof

Revolt · Accepted Answer

contains a set of sentences explaining the steps needed to reach a conclusion.

Question 7

Segment AB is congruent to segment AB.

Revolt · Accepted Answer

reflexive

Question 8

The last line of a proof represents

Revolt · Accepted Answer

the conclusion.

Question 9

segment addition propertyangle addition postulatereflexive propertytransitive property

Revolt · Accepted Answer

angle addition postulate

Introduction to Proof Answers

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