Hexagon in circle

Calculate the radius of a circle whose length is 10 cm greater than the circumference of a regular hexagon inscribed in this circle.

Correct result:

r =  35.3126 cm

Solution:

  2π r=10+6r 2 3.1415926 r=10+6r  2 3.1415926 r=10+6 r  0.283185r=10  r=35.31258=35.3126 cm



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