Jeopardy
This. IS. Jeopardy. Name that Shape. Formulas and Strategies. Vocabulary. Interior Angles. Exterior Angles. Central Angles. Vocabulary. Name that Shape!. Formulas and Strategies. Interior Angles. Exterior Angles. Central Angles. $100. $100. $100. $100. $100.
Jeopardy
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Presentation Transcript
This IS Jeopardy
Name that Shape
Formulas and Strategies
Interior Angles
Exterior Angles
Central Angles
Vocabulary Name that Shape! Formulas and Strategies Interior Angles Exterior Angles Central Angles $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
100 points What is the name of a polygon with 6 sides?
100 Points A Hexagon!
200 Points What is the name of a polygon with 7 sides?
200 Points A Heptagon or Septagon!
300 Points What is the name of a regular polygon with an exterior angle of 36o?
300 Points N = 10 A Decagon
400 Points What is the name of a polygon with an interior angle sum of 12600?
400 Points • N = 9 • A Nonagon!
500 Points What is the name of a regular polygon with an interior angle of 150o?
500 Points N = 12 A dodecagon!
100 Points What is the formula or strategy you would use to calculate the measure of an exterior angle of a regular polygon?
100 Points Exterior Angle = 360/n
200 Points What is the formula you would use to calculate the sum of the interior angles?
200 Points Interior Sum = (n-2)180
300 Points What is the formula you would use to calculate one interior angle of a regular polygon?
300 Points Interior Angle = (n-2)180 n
400 Points If you are given the interior angle, how would you calculate the exterior angle?
400 Points The interior and exterior angles are supplementary, so Exterior = 180 - interior
500 points Set up the equation that you would use to solve for x. Don’t solve it. X + 100 X + 100 x0 x0 x0 x0 X + 100 X + 100
500 points 4x + 4(x+10) = 1080 Or 8x + 40 = 1080 X + 100 X + 100 x0 x0 x0 x0 X + 100 X + 100
100 Points Draw a polygon and label and interior angle.
200 Points Draw a polygon and label the exterior angle.
300 Points What is the name of an 8 sided figure?
300 Points Octagon
Daily Double!!
500 Points Draw a hexagon and label the central angle
100 Points What is the sum of the interior angles of a 56-gon?
100 Points Sum = 9720o
200 Points What is the measure of one interior angle in a 14-gon?
200 Points Interior angle = 154.3o
300 Points If the measure of the exterior angle is 81o, what is the measure of the interior angle?
300 Points interior angle = 99o
400 Points Solve for x. 141o 140o 87o 85o X 135o
400 Points X = 1320
500 Points What are the measures of each angle? A 5x + 2 E B 2x + 10 2x + 10 3x + 4 3x + 4 D C