Splash Screen Then/Now You wrote algebraic and two-column proofs. (Lesson 2–6) Write proofs involving segment addition. Write proofs involving segment congruence. Concept…

Splash Screen Lesson Menu Five-Minute Check (over Lesson 2–6) Then/Now Postulate 2.8: Ruler Postulate Postulate 2.9: Segment Addition Postulate Example 1: Use the Segment…

Lesson 7 Menu Warm-up Problems State the property that justifies each statement. 2(LM + NO) = 2LM + 2NO. If mR = mS, then mR + mT = mS + mT. mZ = mZ.…

Lesson 7 Menu Warm-up Problems State the property that justifies each statement. 2(LM + NO) = 2LM + 2NO. If mR = mS, then mR + mT = mS + mT. mZ = mZ.…

Then/Now You wrote algebraic and two-column proofs. Write proofs involving segment addition. Write proofs involving segment congruence. Concept Concept Concept Concept Concept…

Glencoe Geometry Bell Ringer 11-8 (in your notes) You may use your notes on 2-7 only. What is the title of Lesson 2-7? What is the difference between a postulate and a theorem?…