SOLUTION: A regular hexagon is inscribed into a circle . The side of the hexagon is 10cm. Findthe diameter of the circle. A)20 B)18 C)16 D)12

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Question 1144967: A regular hexagon is inscribed into a circle . The side of the hexagon is 10cm. Findthe diameter of the circle.
A)20
B)18
C)16
D)12
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

If you saw a regular hexagon at least once in your life, you should know that it can be presented 

as the union of 6 equilateral triangles.



After this recalling, everything in the solution should be clear to you,

even without my further explanations.