Math 12.3 polygons

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14 Terms

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Triangle

3 sides, 180 degrees

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quadrilateral

4 sides, 360 degrees (square, rectangle, parallelgram, trapzoid etc,

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examples of quadrilateral

square, rectangle, parallelgram, trapzoid etc,

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pentagon

5 angles, 540 degrees

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hexagon

6 sides, 720 degrees

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heptagon

7 sides, 900 degrees

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octagon

8 sides, 1080 degrees

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nonagon

9 sides, 1260 degrees

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decagon

10 sides, 1440 degrees

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total number of degrees of a regular polygon

180 (n-2)

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perimeter of semi circle

P= 3.14r + 2r

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area of semi circle

A= ½ bh r squared

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what is the sum of the exterior angles of any polygon

360

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corresponding angles

angles that lie on the same side of the transversal in corresponding positions

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