1 / 9

GBK Geometry

GBK Geometry. Jordan Johnson. Today’s plan. Greeting Warm-up: Trapezoids Lesson: Midsegments Homework / Questions Clean-up. Warm-up. Draw a trapezoid satisfying these conditions. Exactly two right angles At least three right angles Exactly three equal sides Equal legs Equal bases

niloufer-fayaz
Download Presentation

GBK Geometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Warm-up: Trapezoids • Lesson: Midsegments • Homework / Questions • Clean-up

  3. Warm-up • Draw a trapezoid satisfying these conditions. • Exactly two right angles • At least three right angles • Exactly three equal sides • Equal legs • Equal bases • Which of your trapezoids are proper?

  4. How is the area of ABC related to the areaof BDE, DEF, ADF, and FEC? • How is the area of ABC related to the areaof BDE, DEF, ADF, and FEC? • How are DE, DF, and EF related to ABCand its sides?

  5. How is DE related to ABC? • How is DE defined?

  6. Midsegments • A midsegment of a triangle is a segment whose endpoints are the midpoints of two sides of the triangle. • DE is a midsegment of ABC.

  7. Midsegment Conjectures • DE║AC ? • DE = AC⁄2 ? • DE = DA + EC⁄2 ? • AADEC = 3ADBE ?

  8. Homework • Lab: • Add to your construction log. • Add to your conjecture & proof log. • 10 minutes from end: Week 27 Journal. • Homework: 50+ minutes: • Asg #59. • Read Ch. 9 Lesson 1.

  9. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

More Related