# If the radius of a circle is 4cm, what is the area?

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Jun 19, 2018

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Using the formula,

Here

#pi# is a button on your calculator you can find, but is also generally known as#3.14# , you can use either one, but teachers usually prefer you use the#pi# button.#r =# the radius, in your case, it's#"4 cm"#

So

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