Can someone help me with this as i'm stuck on it?

0 ⤊

Can someone help me with this as i'm stuck on it?

Find the circumference of a wheel with a radius of 9cm

If the wheel travels 7 metres, how many complete revolutions are made by the wheel?

2006-11-09 07:56:16 · 3 answers · asked by brinsdon2000 1 in Education & Reference ➔ Homework Help

3 answers

circumference = 2 times 3.14 times radius = 6.28 times 0.09m = 0.5652

7 divided by 0.5652 = 12.385

answer is 12.4

2006-11-09 08:00:50 · answer #1 · answered by carbonkid22 2 · 0⤊ 0⤋

the circumference is just twice the radis so its 18 cm and to find out how far in goes in 7 meters just see how many times 18cm goes into one meter and times that by 7

2006-11-09 16:01:27 · answer #2 · answered by Tiffy 3 · 0⤊ 0⤋

9 times 9=18, 18 times 3.14=56.52

2006-11-09 16:01:21 · answer #3 · answered by Anonymous · 0⤊ 0⤋