Agenda EQ: How do we write 2-column Geometric Proofs? Agenda Warm Up/Check Hwk Practice on Geometric Proofs Quiz on Algebraic Proofs Homework Proofs Worksheets # 3 & 4 (1 & 3 from each)
Warm UP Write/Draw an example of each of the following: Angle Addition Postulate Definition of Vertical Angles Substitution Property of Equality Distributive Property of Equality Segment Addition Postulate
Homework: Proofs Worksheet #1 Write a 2-column proof for the following: Given: 2 𝑛+5 =−2 Prove: 𝑛=−6 (#8 f/ S.E.W.) Given: 𝑣+9 3 =8 Prove: 𝑣=15 (#7 f/ S.E.W.) Statement Reason Statement Reason Statements Reasons 1 and 3 are a linear pair. 2 and 3 are a linear pair. 1. 2. 1 and 3 are a supplementary angles. 2 and 3 are a supplementary angles. 2. 3. 1 2 3. 4. m1 = m2 4.
Proofs Worksheet #2