SOLUTION: A model airplane flies a circular course at the speed of 175/sec. If it completes one circuit in 3 seconds, what the radius? I have used the perimeter and area formula and i can

Question 705302: A model airplane flies a circular course at the speed of 175/sec. If it completes one circuit in 3 seconds, what the radius?
I have used the perimeter and area formula and i can't get the right answer. can someone help and explain to me how to solve this problem?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
How far in 3 seconds? That is the circumference. 2*pi*r=Circumference. Find r. You already know circumference. Circumf=(175/sec.)*3*60*sec.
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