Polygon Info

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12 Terms

1
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complementary angles equal
90 degrees
2
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supplementary angles equal
180 degrees
3
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A triangle has
3 sides and equals 180 degrees
4
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A quadrilateral has

Include Squares, rectangles, Rhombuses, Parallelograms, Trapezoids

4 sides and equal 360 degrees

5
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A pentagon has
5 sides and equals 540 degrees
6
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A hexagon has
6 sides and equals 720 degrees
7
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A octagon has
8 sides and equals 1080
8
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A decagon has
10 sides and equals 1440 degrees
9
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What are vertical angles?

They are formed when two lines intersect, they are opposite from each other and are always congruent (equal)Ex. if the one on top is 50 then the bottom is 50

10
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What are corresponding angles?

They are formed when a transversal intersects two lines They occupy the same relative position at each intersection

11
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Circles
360 degrees
12
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when trying to find the degree of a polygon

you can use the formula

Interior angle sum = (n-2)x180

EX, count the sides of a pentagon which is 5 sides

(5-2)x180

(3)x180

540 degrees