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10.3 Areas of Regular Polygons The radius of a regular polygon is the distance from the center to a vertex. The apothem is the perpendicular distance from the center to a side.
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Finding Angle Measures The figure is a regular pentagon with radii and an apothem drawn. What is the measure of each numbered angle?
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Postulate 10.1 If two figures are congruent, then their areas are equal.
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Theorem 10.6 The area of a regular polygon is half the product of the apothem and the perimeter.
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Finding the Area of a Regular Polygon What is the area of the regular decagon?
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More Practice!!!!! Homework – Textbook p. 632 #8 – 25 ALL.
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