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11-3 Areas of Regular Polygons and Circles

# 11-3 Areas of Regular Polygons and Circles - Pa A 2 1 =...

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Area of Regular Section 11-3

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apothem – a segment that is drawn from the center of a regular polygon perpendicular to a side of the polygon
Area of a Regular Polygon If a regular polygon has an area of A square units, a perimeter of P units, and an apothem of a units, then

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Unformatted text preview: Pa A 2 1 = Area of a Circle If a circle has an area of A square units and a radius of r units, then 2 r A π = r Joke Time What happened to the plant on the windowsill of the classroom? It grew square roots! Is a hammer a useful tool in math class? No, you need multi-pliers!...
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11-3 Areas of Regular Polygons and Circles - Pa A 2 1 =...

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