The formula s=√A4.828 can be used to approximate the side length s of a regular octagon with area A. A stop sign is shaped like
a regular octagon with a side length of 12.4 inches. To the nearest square inch, what is the area of the stop sign?
inches²
inches²
1 answer:
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Hello,
If center is (0,0)
x²/a²+y²/b²=1 for a half horizontal axis of a, and a half vertical axis of b
Here
a=2 ==> a²=4
b=8 ==> b²=64