If the radius is 6 inches, you can do a couple different things. You can do 3.14 times 6 then double it. Or you can do 6.28 times 6. Either way it comes to the answer, 37.68 inches is the cicumference. You can also double the radius to make it the diameter (12) and multiply by 3.14 to get the same answer: 37.68. The formula is C=rpie2 or C=dpie. So for this problem you would do C=6 times 3.14 times 2. Then substitute in for the variables until you solve it all. Good luck!
I assume 12 is diameter. If so 12/2 is radius of 6in. 6x6xpi is 113.1squared inches
Use the formula for the circle: area = pi x radius squared. Replace the area, and solve for the radius. Multiply the radius by 2 to get the diameter.
Curved surface area = pi*radius*slant length = 792 square cm radius = 792 divide by (pi*slant length)
Use the formula for volume to solve for the radius of the sphere and then plug that radius into the formula for the surface area of a sphere.
If v = r * h then> r = v / h
A cylinder with a radius of 2 inches and a height of 6 inches has a volume of 75.398 inches3
The diameter is twice the radius.
6in * 6in * 6in = 216in3
Slant height is 7.81 inches.
circumference = 2*pi*6 = 37.699 inches to 3 decimal places
Volume = pi6210 = 1130.973 cubic inches to 3 decimal places
I assume 12 is diameter. If so 12/2 is radius of 6in. 6x6xpi is 113.1squared inches
The formula is: circumference = 2 x pi x radius. As always when you use a formula, plug in the values you know and solve for the ones you don't. So plug in 46 for the circumference and solve for the radius. (You'll get that the radius = (circumference)/(2pi)).
A cylinder with a radius of 3 (6/2) inches and a height of 5 inches has a volume of 141.37 inches3.
divide the radius by Pi2
Only if the 3rd side is equal or less than 6in
You can solve for revolutions per second using the equation (f = \frac{v^2}{r}), where (f) is centripetal force, (v) is linear velocity, and (r) is radius. Once you know linear velocity, you can calculate revolutions per second by dividing linear velocity by the circumference of the circular path.