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04-09-2019
Mathematics

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the formula for the area of a circle is A pi r^2 what is the radius of a circle with an area of 400 pi cm^2

the formula for the area of a circle is A pi r2 what is the radius of a circle with an area of 400 pi cm2 class=

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StarAce2017 StarAce2017

04-09-2019

Answer: 20 cm

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain a variable.

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