1 / 10

Section 5.1 Properties of Parallelograms

Section 5.1 Properties of Parallelograms. QUADRILATERALS. Warm up FOUR SIDED FIGURES. A parallelogram is a TYPE of quadrilateral. Definition of parallelogram. A quadrilateral with both pairs of opposite sides parallel. Theorems about Parallelograms.

ciqala
Download Presentation

Section 5.1 Properties of Parallelograms

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. Section 5.1 Properties of Parallelograms

  2. QUADRILATERALS Warm up FOUR SIDED FIGURES

  3. A parallelogram is a TYPE of quadrilateral

  4. Definition of parallelogram • A quadrilateral with both pairs of opposite sides parallel.

  5. Theorems about Parallelograms • 5.1: Opposite sides of a parallelogram are congruent. • 5.2: Opposite angles of a parallelogram are congruent. • 5.3: Diagonals of a parallelogram bisect each other.

  6. Find the missing values. x = 100 y = 45 z = Not enuf info 35o xo 180 – 80 = 100o 80o 45o yo 7 c ANGLES 12 a LENGTHS 8 b zo d 6 Note: Figure NOT Drawn to Scale.

  7. Find the missing values. LENGTHS 2x + 5y = 30 2x + 2y = 18 3y = 12 y = 4 2x + 2(4) = 18 2x = 10 x = 5

  8. Is it a parallelogram? SSIAs 112 + 78 = ? 112 + 78 = 190 190 ≠ 180 No it is not. Note: Figure NOT Drawn to Scale.

  9. Is it a parallelogram? 1 pair of opp. sides are || Not enough information so it is not a parallelogram. 1 pair of opp. sides are ≅

  10. Practice • Page 168 • Classroom Exercises • #1 – 8, • Draw Diagrams for #3,4,5

More Related