The perimeter of a regular octagon is 48 cm. Find the length of each side. (5) 120 points) What is the sum of the interior angles of a regular dodecagon (12-sided)? Explain and show your work. (20 points) What is the sum of the interior angles of a regular polygon? Explain and show your work.
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The perimeter of a regular octagon is 48 cm. To find the length of each side, we can divide the perimeter by the number of sides. An octagon has 8 sides, so: Length of each side = $\frac{48}{8} = \boxed{6\text{ cm}}$ Show more…
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