Lesson 10-7 Pages 446-450 Polygons and Tessellations.

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Presentation transcript:

Lesson 10-7 Pages Polygons and Tessellations

What you will learn! How to classify polygons and determine which polygons can form a tessellation.

PolygonNonagonPentagonDecagon Hexagon Regular polygon HeptagonTessellation Octagon

What you really need to know!

Link to Pre-Made Lesson

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 ° 900 ÷ °

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

Pages with someone at home and study examples! Read:

Homework: Page #’s 8-28 all #’s all Lesson Check 10-7Chapter Test Preparation

Page 589 Lesson 10-7

Study Guide and Review Pages #’s 6-22 (Odd answers in back of book)

Prepare for Test! Pages 465 #’s 3-14, 16

Prepare for Test! Pages #’s 1-16