Circle A has a radius with the length of 5 units. Calculate the exact length of the apothem, line segment AH . In your final answer, include your calculations.

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raquelkelli01 · Answer

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campbell_st · Answer

well there are several ways to do this question. 

you know the sector angle EAD is 60 degrees... since the polygon is a Hexagon, each sector angle is 1/6 of 360. 

so you can find the length of ED using the Law of Cosines. 

then use Pythagoras' theorem to find AH. 

AH bisects ED, so AH is a shorter side in a right triangle. 

hope it makes sense.