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Name:___________________________
Date:_____________ Class Period:____
GPS Geometry
Finding Angle Measures in Polygons Notes
There are ________ formulas that you have to know for finding _______________ measures
in polygons.
How do you find the sum of the interior angles of a polygon?
Formula:__________________________
Examples: Find the sum of each polygon
1. 15 – gon
2. Dodecagon
3.
How do you find the number of sides (n), if you are given the sum?
Formula:_________________________
Examples: The sum of the angles of a polygon is given, find the number of sides.
1. 900o
2. 2520o
3. 8640o
How do you find one interior angle of a regular polygon?
Formula:____________________________
Examples: Given the number of sides, find the measure of one interior angle.
1. Heptagon
2. 45 – gon
3.
Name:___________________________
Date:_____________ Class Period:____
How do you find the number of sides if you are given the measure
of one interior angle?
Formula:____________________________
Examples: Given the measure of one interior angle, find the number of sides.
1. 140o
2. 156o
3. 175.2o
How do you find the sum of the exterior angles of any polygon?
Formula:____________________________
Examples: Given the number of sides, find the measure of the exterior angles.
1. 18-gon
2. One-Million-gon
3. 90-gon
How do you find one exterior angle of a regular polygon?
Formula:____________________________
Examples: Given the number of sides, find the measure of one exterior angle.
1. Heptagon
2. 45 – gon
3.
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