A circle flower garden has a radius of 4.5 feet. What is the circumference of the flower garden? (Express your answer using π.)


4.5π feet


9π feet


20.25π feet


10π feet



Answer :

First, use the equation for circumference:
c= 2πr
now plug in what you know:
c= 2π(4.5)
c= 9π

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