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Section 2.3 Proving Theorems. WARM UP. STATEMENTS REASONS. 1. Given. 2. Angle Addition Postulate. 3. Addition Prop. 4. Substitution. A. M. MIDPOINT. Midpoint Theorem. B. A. M. B. STATEMENTS REASONS. ½ AB. Midpoint Theorem.
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STATEMENTS REASONS 1. Given 2. Angle Addition Postulate 3. Addition Prop 4. Substitution
A M MIDPOINT Midpoint Theorem B
A M B STATEMENTS REASONS ½ AB
Midpoint Theorem Definition of a Midpoint: is the point that divides the segment into two congruentsegments.
X B C Angle Bisector Theorem A
Angle Bisector Theorem Definition of Angle Bisector: A ray that divides the angle in two congruent angles.
Practice Problems • Page 42 #9, 10 • Page 45 #1-9