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The circle shown here has area πr2. If its radius is tripled in length its new area will be

A) 3πr2
B) 6πr2
C) 9πr2
D) 18πr2

User Yuro
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1 Answer

4 votes

The correct answer is 9πr^2

I know because I just took the quiz.

User Slabofguinness
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