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FAQ
One interior angle + one exterior angle in a regular polygon will always add up to 180 (straight line). The sum of all exterior angles are 360.
If a polygons interior angles each have a measure of 120 degrees, how many sides does this polygon have. (keep in mind one interior angle + one exterior must equal 180 and all exterior angles must equal 360)
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All about polygons
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Logos & Reflectional Symmetry
Which of these popular logos have reflectional symmetry across any line?
Why are all equilateral triangles, isosceles?
and are all isosceles triangles, equilateral as well?
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