Area of Regular Polygons by Decomposing

Area of Regular Polygons

​You do together...

​You do together...

​You do together...

​You do together...

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7.  Heather is building a pond for a local park. The pond is shaped like a regular dodecagon. Each side of the dodecagon is 4.25 yards. Find the area of the pond.  Do NOT round your answer.  

____ yds²

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7.  8.  Jada is setting out a serving plate for dinner. The plate is shaped like a regular pentagon. Each side of the pentagon is 6.25 inches. Find the area of the plate. Round to the nearest hundredth.

____ in.²