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Geometry 17 Online
OpenStudy (anonymous):

ABCDEFGHIJ is a regular decagon with a radius of 25.89 units and a side length of 16. Find the area of ABCDEFGHIJ. Round the answer to the nearest tenth.

OpenStudy (amistre64):

how many sides does a decagon have?

OpenStudy (anonymous):

10

OpenStudy (amistre64):

then we will need to multiply one of its triangle pieces by 10

OpenStudy (anonymous):

16*10=160 but thats the perimeter

OpenStudy (amistre64):

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