2.2.3 Flowchart and Paragraph Proofs

Question 1

flowchart proof

Answer 1

uses boxes and arrows to show the structure of a proof

Question 2

paragraph proof

Answer 2

the statements and reasons of the proof are presented as sentences in a paragraph

Question 3

Common Segments Theorem

Answer 3

Given collinear points A, B, C, and D arranged on a segment such that A and D are the endpoints, B is between A and C, and C is between B and D. If AB = CD, then AC = BD.

Question 4

Vertical Angles Theorem

Answer 4

Vertical angles are congruent.

Question 5

Theorem

Answer 5

If two congruent angles are supplementary, then each angle is a right angle.