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Rectangle 2-16-17
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bchilders2018
SUM of EXTERIOR angle of TRIANGLE
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bchilders2018
EXTERIOR ANGLES
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bchilders2018
Quadrilatrals exterior angles sum equal 360
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bchilders2018
NONAGON~1260
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bchilders2018
OCTAGON~1080
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bchilders2018
HEPTAGON~900
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bchilders2018
hexagon~720
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bchilders2018
ISOSCELES TRIANGLE
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bchilders2018
