A cylindrical jelly jar is 5 inches across the top and about 10 inches high. How many cubic inches of jelly could it hold (to the nearest hundredth)?
2006-11-13 19:10:29 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
volume of a cylinder is pi x r^2 x h
r= radius of the top and h is height
so volume is 3.142 x 2.5^2 x 10 = 196.35 cubic inches
so this is the amount of jelly it can hold
2006-11-13 19:25:58 · answer #1 · answered by yog 2 · 0⤊ 0⤋
r = radius = 2.5 inch
h = height =10 inch
Pi = 22/7 = 3.142857
Volume = Pi X r^2 X h = 3.142857 X 2.5 X 2.5 X 10 = 196.43 cubic inches
2006-11-13 19:37:26 · answer #2 · answered by ShashiSG 2 · 0⤊ 0⤋
Use the formula pi * radius * radius (pi r squared) to find the area of the circle, then imagine a stack of the circles/disks 10 inches tall. In other words, multiple the area of the circle by the height of the cylinder and you have the volume of the cylinder. Volume is measured in cubic something, and in this case, cubic inches.
2006-11-13 19:14:22 · answer #3 · answered by justdennis 4 · 0⤊ 0⤋
Radius is 2.5 multiply that by itself then multiply by pi (3.14) which is 19.63 times the height which is 10 = 196.35
2006-11-13 19:28:12 · answer #4 · answered by George 4 · 0⤊ 0⤋