i have a circumference of 40000000 meters and i need to find the radius of that, and i also have a circumference of 40000002 meters, what is the radius for that also? PLEASE SHOW WORK thank you so much!
2006-10-10 08:54:28 · 3 answers · asked by cindsterr 3 in Education & Reference ➔ Homework Help
Since circumference equals 2 times the radius times pi, work the problem backwards.
40000000 = 2(3.14)r so divide both sides by 6.28 (2*3.14 = 6.28)
That will get you the radius for the first one. And you can do the same thing for the other circumference.
Hope this helps. Good Luck.
2006-10-10 08:57:45 · answer #1 · answered by SmileyGirl 4 · 1⤊ 0⤋
The circumference of the circle = 2 Pi r
where Pi = 3.1416
r = is the radius in meters
Solving for radius,
r = circumference of circle/(2x3.1416)
r = circumference of circle/6.2832
Then directly substitute the values of circumference on the above equation to find the radius.
Go and try it.
2006-10-10 09:00:53 · answer #2 · answered by The young Merlin 4 · 0⤊ 0⤋
Dived by pie.
2006-10-10 08:56:28 · answer #3 · answered by oldmanwitastick 5 · 0⤊ 2⤋