The radius of a regular decagon, a 10-sided figure, is 15 units. The length of one side of the polygon measures about 9.3 units. What is the approximate area of the regular decagon rounded to the nearest tenth?
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The required area is 665.5 sq. units
Step-by-step explanation:
Given side=9.3
radius= 15 units
We know, area of a regular decagon= 5 /2 * a^2*rt[5+2rt(5)]
=5/2 * (9.3)^2 * 3.07
=665.5
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