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Do Now

Do Now. Find the value of x. 22 + x + 10 = 65 5x + 125 = 360 180 = 55 + x x + 2x = 30. 10.2 Polygons & Quadrilaterals. Objective: classify polygons and quadrilaterals Homework: p545 #7-9, 11-20. Key Terms.

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Do Now

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  1. Do Now • Find the value of x. • 22 + x + 10 = 65 • 5x + 125 = 360 • 180 = 55 + x • x + 2x = 30

  2. 10.2 Polygons & Quadrilaterals Objective: classify polygons and quadrilaterals Homework: p545 #7-9, 11-20

  3. Key Terms • Polygon: ______________________________________________________________________________ • Regular Polygon: ____________________________________________________________________________________

  4. Key Terms • Convex: _____________________________________________________________________________________ • Concave: ______________________________________________________________________________________

  5. PolygonsNot Polygons

  6. Example 1: Identify & Classify the Polygon • Tell whether the figure is a polygon. If it is a polygon, classify it an tell whether it is convex or concave.

  7. Checkpoint • Tell whether the figure is a polygon. If it is a polygon, classify it an tell whether it is convex or concave.

  8. Quadrilaterals

  9. Quadrilaterals

  10. Example 2: Classify the Quadrilateral

  11. Example 3: Angles in Quadrilaterals • Find the value of x. 68 x 2x

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