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1/13 Geometry Bell Ringer

1/13 Geometry Bell Ringer. Get out your homework from Tuesday, and have yesterday’s worksheet ready. If O is the midpoint of PQ and SR, what conclusions can you make?. Homework: Finish Proofs Worksheet from yesterday! Handed in tomorrow!. 1/13 News and Notes. Yesterday: Hand in homework

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1/13 Geometry Bell Ringer

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  1. 1/13 Geometry Bell Ringer Get out your homework from Tuesday, and have yesterday’s worksheet ready. If O is the midpoint of PQ and SR, what conclusions can you make? Homework: Finish Proofs Worksheet from yesterday! Handed in tomorrow!

  2. 1/13 News and Notes • Yesterday: • Hand in homework • Perfection Award (from Tuesday): 1st Period. • Quick 1 Proof Quiz tomorrow at the end of class.

  3. 1/13 Agenda • I CAN make statements in a proof based on varied given information. • 1. Bell Ringer • 2. New Material – Making valid conclusions. • 3. Guided Practice – Do a proof together • 4. Independent Practice

  4. Angle Bisector • Given: XZ is the angle bisector of • Definition: Line segment XZ cuts angle WXY into two halves. • Conclusion (statement) used based on this definition: • Mark it!

  5. Perpendicular Bisector • Given: XZ is the perpendicular bisector of WY. • Definition: XZ creates two right angles and cuts WY in half • Conclusions (statement) used based on def: • Mark them! • What if just perpendicular was given?

  6. Isosceles Triangle • Given: ΔWXY is isosceles. • Definition: Δ with 2 sides and 2 angles congruent. • Conclusion (statements) used based on def: • Mark them!

  7. Parallel Lines 1 2 3 4 • Given: • Definition: When 2 lines are parallel, AIA are congruent! • Conclusion (statement) used based on AIA: • Mark them!

  8. 1 proof putting it together X • Given: ΔWXY is isosceles • Prove: • This will be handed in to be checked! When you finish turn it in to Ms. Yang and then start your homework W Y Z

  9. Independent Practice Homework is to finish all 10 proofs for tomorrow! We need them to be finished in order to take the next step tomorrow.

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