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Lesson 10-7 Pages 446-450. Polygons and Tessellations. What you will learn!. How to classify polygons and determine which polygons can form a tessellation. Vocabulary. What you really need to know!. Link to Pre-Made Lesson. Example 1:.
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Lesson 10-7Pages 446-450 Polygons and Tessellations
What you will learn! How to classify polygons and determine which polygons can form a tessellation.
Example 1: Determine whether the figure is a polygon. If it is, classify the polygon and state whether it is regular. If it is not a polygon, explain why. Not a polygon Has curves
Example 2: Determine whether the figure is a polygon. If it is, classify the polygon and state whether it is regular. If it is not a polygon, explain why. Hexagon Not Regular
Example 3: Find the measure of each angle of a regular heptagon. Round to the nearest tenth of a degree. 5 x 180 900° 900 ÷ 7 128.6°
Example 4: Ms. Pena is creating a pattern on her wall. She wants to use triangles with angles 120°, 30°, and 30°. Can Ms. Pena create a tessellation with these triangles?
The sum of the measures of the angles where the vertices meet in a tessellation is 360°. Since 360° is divisible by both 30° and 120°, the polygons can be arranged in a tessellation.
Page 448 Guided Practice #’s 4-7
Read: Pages 446-448 with someone at home and study examples!
Homework: Page 449-450 #’s 8-28 all #’s 32-45 all Chapter Test Preparation Lesson Check 10-7
Page 589 Lesson 10-7
Study Guide and Review Pages 462-464 #’s 6-22 (Odd answers in back of book)
Prepare for Test! Pages 465 #’s 3-14, 16
Prepare for Test! Pages 466-467 #’s 1-16