First of all. I would like to formally apolagize to everyone, as my last question wasn't very informative or detailed and I am truly sorry for upsetting anyone.
This is the question from my Pace:
The volume of a paint can is 215 in2. If the height of the can is 7.5 in, what is the radius to the whole number?
I have looked through my pace but I can't find anywhere where it properly explains this. Please help.
What's a "pace?" Is it a workbook, are you in a private school or something?
Pyscho Baker, I'm homeschooled, doing Distance Education, and my school sends me paces, It's basically a 10 - 50 page workbook, with lots of questions and all that stuff, but the thing is a lot of the stuff they explain very poorly cause they don't have space to put massive detailed instructions. it sucks.
Volume would normally be given as inches^3....I'm going to assume that it is supposed to be
215 in ^3
The paint can is a cylinder.....and the volume of a cylinder is
pi * radius ^2 * height
Filling in what we know, we have
215 = pi * radius^2 * 7.5
Divide both sides by pi * 7.5
[215 / ( pi * 7.5) ] = radius^2
Take the square root of both sides
sqrt [ 215 / (pi * 7.5) ] = radius = about 3.02 inches = about 3 inches to the nearest whole number
Hope that helped....!!!