Question
The perimeter of a regular octagon with side
is 8 s . Kiera is making a planter shaped like an
octagon to surround the base of her favorite oak tree. Each side of the planter will be 9
inches long.
What is the perimeter of the planter?
Write your answer as a whole number or decimal.
Submit
octagon to surround the base of her favorite oak tree. Each side of the planter will be 9
inches long.
What is the perimeter of the planter?
Write your answer as a whole number or decimal.
Submit
Ask by Cole Wyatt. in the United States
Jan 23,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The perimeter of the planter is 72 inches.
Solution

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Bonus Knowledge
To find the perimeter of Kiera’s octagonal planter, we use the formula for the perimeter of a regular octagon, which is the number of sides (8) multiplied by the length of one side
. Since each side is 9 inches long, we calculate:
So, the perimeter of the planter is 72 inches.
Another fun fact: octagons are not just for planters! These eight-sided shapes pop up everywhere—think stop signs and certain tiles. They provide a unique look and can be easily arranged to create interesting patterns, making them popular in architecture and design too.