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MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

Geometry Mini-Lesson. Tony is drawing a regular polygon. He has drawn two of the sides with an interior angle of 120°, as shown below. How many sides will the regular polygon have when Tony completes his drawing?. 6 7 8 9 .

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MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

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  1. Geometry Mini-Lesson Tony is drawing a regular polygon. He has drawn two of the sides with an interior angle of 120°, as shown below.How many sides will the regular polygon have when Tony completes his drawing? • 6 • 7 • 8 • 9 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  2. Geometry Mini-Lesson Review the triangle below. What is the measure of the exterior angle shown? • 42° • 64° • 117° • 126° MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  3. Geometry Mini-Lesson John is drawing a regular polygon. He has drawn two sides with an exterior angle measure of 45°, as shown. When John completes his regular polygon, what will be the sum, in degrees, of the measures of the interior angles? Gridded Response Correct Answer: 1080 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  4. Geometry Mini-Lesson In the pentagon below, what is the measure of the exterior angle shown? • 45° • 81° • 99° • 137° MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  5. Geometry Mini-Lesson Mindy is drawing a regular polygon. She has drawn two sides with an exterior angle measure of 36°, as shown below.When she completes her regular polygon, what will be the sum, in degrees, of the measures of the interior angles? Gridded Response Correct Answer: 1440 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  6. Geometry Mini-Lesson Sonja is drawing a regular polygon. She has drawn two of the sides with an interior angle of 150°, as shown.How many sides will the regular polygon have when Sonja completes her drawing? • 10 • 11 • 12 • 13 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  7. Geometry Mini-Lesson Find the value of x in the pentagon below. • 18 • 18.9 • 19.6 • 20 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  8. Geometry Mini-Lesson Find the value of x in the octagon below. • 34 • 36 • 57 • 69 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  9. Geometry Mini-Lesson A regular pentagon and a regular hexagon share a vertex, as shown below.What is the value of x, in degrees? Gridded Response Correct Answer: 13 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

  10. Geometry Mini-Lesson A regular pentagon shares each of its sides with an equilateral triangle, as shown.What is the value of x, in degrees? Gridded Response Correct Answer: 132 MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used

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