Question

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 1

Length length radius of a wheel in an inline skates = 41 millimeters

Circumference of wheel = Millimeters traveled by the wheel in one rotation

(pi value =
`\tt\: (22)/(7)`)

Circumference of wheel :

`= \tt2\pi r`

`=\tt 2 * (22)/(7) * 41`

`= \tt (2 * 22)/(7) * 41`

`= \tt (44 * 41)/(7)`

`\color{plum} =\tt 257.71 \: mm`

Thus, the wheel will travel 257.71 mm in one rotation.

Distance traveled by the wheel in 5 rotations :

= distance traveled by the wheel in 1 rotation × 5

`=\tt 257.71 * 5`

`\color{plum} = \tt\bold{1288.55 \: mm}`

`=\tt (1288.55)/(10) \: cm`

`\color{plum}=\tt 128.855 \: cm`

▪︎Therefore, the distance traveled by the wheel in 5 rotations = 1288.55 millimeters or 128.855 cm.