1 / 18

Quadrilaterals Classification Lesson: Shapes and Angles

Learn to identify and classify quadrilaterals, including parallelograms, trapezoids, rectangles, and rhombuses in this interactive lesson. Practice finding missing angle measures to enhance your geometry skills.

williamslouise
Download Presentation

Quadrilaterals Classification Lesson: Shapes and Angles

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. Transparency 5 Click the mouse button or press the Space Bar to display the answers.

  2. Splash Screen

  3. Example 5-3b Objective Identify and classify quadrilaterals

  4. Example 5-3b Vocabulary Quadrilateral A closed figure having four sides and four angles

  5. Example 5-3b Vocabulary Parallelogram A quadrilateral with opposite sides parallel and opposite sides congruent

  6. Example 5-3b Vocabulary Trapezoid A quadrilateral with one pair of parallel sides

  7. Example 5-3b Vocabulary Rhombus A parallelogram having four congruent sides

  8. Example 5-3b Vocabulary Parallel Lines that do not intersect Always the same distance between the two lines

  9. Lesson 5 Contents Example 1Classify Quadrilaterals Example 2Classify Quadrilaterals Example 3Find a Missing Measure

  10. Example 5-1a Classify the quadrilateral using the name that best describes it. The quadrilateral has 4 right angles Answer: Opposite sides are congruent Rectangle Meets the definition of a rectangle 1/3

  11. Example 5-1b Classify the quadrilateral using the name that best describes it. Answer: parallelogram 1/3

  12. Example 5-2a Classify the quadrilateral using the name that best describes it. The quadrilateral has one pair of parallel sides No congruency symbols No right angles Meets the definition of a trapezoid Answer: Trapezoid 2/3

  13. Example 5-2b Classify the quadrilateral using the name that best describes it. Answer: Square 2/3

  14. Example 5-3a Find the missing angle measure in the quadrilateral. = 3600 x + 1200 + 600 + 600 Add the 4 angles together Sum of the angles in a quadrilateral is 3600 3/3

  15. Example 5-3a Bring down x Find the missing angle measure in the quadrilateral. Combine “like” terms Bring down = 3600 x + 1200 + 600 = 3600 + 600 Ask “what is being done to the variable?” x + 2400 = 3600 x + 2400 - 2400 The variable is being added by 2400 Do the inverse on both sides of the equal sign Bring down x + 2400 Subtract 2400 3/3

  16. Example 5-3a Bring down = 3600 Find the missing angle measure in the quadrilateral. Subtract 2400 Bring down x x + 1200 + 600 = 3600 + 600 Combine “like” terms x + 2400 = 3600 Bring down = x + 2400 = 3600 - 2400 - 2400 Combine “like” terms = 1200 x + 00 Use the Identify Property to add x + 00 Answer: x = 1200 3/3

  17. Example 5-3b * Find the missing angle measure in the quadrilateral. Answer: x = 134 3/3

  18. End of Lesson 5 Assignment

More Related