Problema Solution
marcel bought a new pair of inline skates. Each wheel on the skates is 41 millimeters in radius. Which shows the number of millimeters traveled in 5 full rotations of a wheel?
Answer provided by our tutors
One full rotation equals the circumference of a circle with radius of 41 millimeters.
R = 41 mm
pi = 3.14
C = circumference
C = 2R*pi
C = 2*41*pi
C = 82pi
The length of 5 circumferences is 5C or
5C = 5*82pi
5C = 1,287.40 mm
Marcel traveled approximately 1,287.40 mm.