does anyone know the answer to this?
a trundle wheel is used to measure distances, a person makes a trundle wheel, of diameter 40cm
what is the circumfrence of the trundle wheel (in cms)?
The person uses the trundle wheel to measure the length of the school car park, the trundle wheel rotates 46 times, what is the length of the car park to the nearest metre?
and it says to use pi in all calculations