I need help with this problem
2 answers:
Answer:
367.57 in³
Step-by-step explanation:
The formula for the volume of a cylinder is , where V is the volume, h is the height, and r is the radius. The picture shows you that r = 3 in and h = 13 in.
Plug these into the formula to find the answer:
Round that to the nearest hundredth to get 367.57. The units for the answer should be in cubic inches.
For the surface area, imagine laying the cylinder out. You'd see two circles, for the top and bottom, and then a rectangle, which is the side. The formula is A=2πrh+2πr². Try to do this yourself! You only need to plug in the values: r = 3 in and h = 13 in.
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b) The surface area is 564.5. Picture below.
4. Three possibilities.
Formula for volume of a cylinder: πr^2h
Formula for volume of sphere: 4/3πr^3
If the radius of the sphere is 1 inch than the volume is: 4.18879 or 4.19 rounded.
I used substitution on this website https://www.omnicalculator.com/math/volume
Just plug in the 4.18879 at the cylinder volume and put in a random number in the radius or height whichever you want then it'll give you the one you left blank. You'll find three possibilities for the radius and height of 4.18879 volume.
