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.

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Presentation transcript:

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.

Finding Angle Measures The figure is a regular pentagon with radii and an apothem drawn. What is the measure of each numbered angle?

Postulate 10.1 If two figures are congruent, then their areas are equal.

Theorem 10.6 The area of a regular polygon is half the product of the apothem and the perimeter.

Finding the Area of a Regular Polygon What is the area of the regular decagon?

More Practice!!!!! Homework – Textbook p. 632 #8 – 25 ALL.