# math

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What is the circumference and the area of a circle with a radius of 9.3mm.

• math -

I don't remember the equations exactly, but I know there are equations to find that. Just go an a search engine and type in "circumference equation" or "area equation" and you'll find it.

• Read this first! I found the formula for circumference. -

The circumference formula is:

c = pi times diameter
OR

Sorry, I don't know how to make a pi symbol on the keyboard. :)

I couldn't find the area formula... but just place 9.3 in where I said radius.

Hope I helped! :)

• math -

Thanks Willow

• math -

area of circle = pi r^2

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