SOLUTION: Regular octagon ABCDEFGH has a side length of
2cm. Find the area of square ACEG
Algebra.Com
Question 1179702: Regular octagon ABCDEFGH has a side length of
2cm. Find the area of square ACEG
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
let the side of square be
the area
since < (interior angle of the octagon) is °, we can use cosine formula to calculate
....write as a
............
=> the area
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