chromis What's More Activity B: What Am ! Let's Find Out: What are the differences between regular and irregular polygon2 Let's Use These Materials: answer sheet and ballpen Let's Do It This Way: a. Draw the polygon written in the first column. b. Copy and draw the answer in your answer sheet. d. Numbers 1 and 2 are done for you. Polygon Illustration 1. regular triangle 2. irregular quadrilateral 3. regular pentagon 4 irregular heptagon
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Polygons with congruent sides and angles are regular; all others are irregular. Polygons with all interior angles less than 180° are convex; if a polygon has at least one interior angle greater than 180°, it is concave.
Regular shapes have sides that are all equal and interior (inside) angles that are all equal. Irregular shapes have sides and angles of any length and size.