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Mathematics 18 Online
OpenStudy (anonymous):

If a tree trunk has circumference forty-two feet, what is the tree trunk's diameter to the nearest foot?

OpenStudy (anonymous):

Circumference=diameter*pi you know circumference so just solve for diameter 42=d*pi

OpenStudy (anonymous):

So I have to find out what d is.

OpenStudy (anonymous):

Right so divide both sides by pi

OpenStudy (anonymous):

what is pi?

OpenStudy (anonymous):

pi is about 3.14

OpenStudy (anonymous):

so 3.14/3.14 right?

OpenStudy (anonymous):

On the right yes so it cancels so d=42/3.14

OpenStudy (anonymous):

13.37579618?

OpenStudy (anonymous):

Round to the nearest foot

OpenStudy (anonymous):

132?

OpenStudy (anonymous):

How did you get that?

OpenStudy (anonymous):

not sure.

OpenStudy (anonymous):

just round 13.37 to the nearest whole number

OpenStudy (anonymous):

13?

OpenStudy (anonymous):

yes

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