Asked by rally

if a car were to travel exactly one mile ,one of its tires would make 830 revolutions.Find the radius of the tire in inches.
Answered by Reiny
1 mile = 5280 feet or 63360 inches

so
830(2πr) = 63360
r = 63360/(2π(830)) = 12.15

Answered by rally
An isosceles triangle has a perimeter of 147 inches.Each of the two equal lenghts is three times as long as the base.find the length of the base
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