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Answer:
1. Polygons are two-dimensional objects, not solids. Polygons are classified and described by the number of sides, the kind of angles, and whether any of the sides are the same length (or congruent)
2.There are two main types of polygon - regular and irregular. A regular polygon has equal length sides with equal angles between each side. Any other polygon is an irregular polygon, which by definition has unequal length sides and unequal angles between sides
4 180degress
5.A parallelogram is a quadrilateral whose opposite sides are parallel.
6. Quadrilaterals
7.The formula for calculating the sum of interior angles is ( n − 2 ) × 180 ∘ where is the number of sides.
Step-by-step explanation:
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