1 / 20

Objectives: Develop and use formulas for the sums of the

3.7 Midsegments of Triangles & Trapezoids. Objectives: Develop and use formulas for the sums of the measures of interior and exterior angles of polygons. Warm-Up:. 7. Seven & eleven are both odd numbers. Your task is to make them both even without performing a mathematical operation. 11.

presley
Télécharger la présentation

Objectives: Develop and use formulas for the sums of the

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. 3.7 Midsegments of Triangles & Trapezoids Objectives: Develop and use formulas for the sums of the measures of interior and exterior angles of polygons Warm-Up: 7 Seven & eleven are both odd numbers. Your task is to make them both even without performing a mathematical operation. 11

  2. Mid-segment of a Triangle: a segment whose endpoints are the midpoints of the two sides

  3. Triangle Mid-Segment Conjecture: If a segment joins the midpoints of two sides of a triangle, then the segment is parallel to the third side, and is half its length.

  4. In triangle DEF, A, B, and C are midpoints. Name pairs of parallel segments.

  5. Find DE

  6. Find AB

  7. D and E are midpoints. Find the measure of <A.

  8. In Triangle EFG, H, J, and K are midpoints. Find HJ, JK, and FG.

  9. Given DE, DF, and FE are the lengths of mid-segments. Find the perimeter of triangle ABC.

  10. Find DE

  11. Mid-segment of a Trapezoid: a segment whose endpoints are the midpoints of the non-parallel sides

  12. Trapezoid Mid-Segment Conjecture: A midsegment of a trapezoid is PARALLEL to the bases of the trapezoid and has a measure equal to the average of the base lengths.

  13. Find NO

  14. Find PQ

  15. Find KL

  16. Find KL

  17. Find DE, FG, & HI

  18. Find AB & CD

  19. Find AB, WO, & CD

More Related