Diameter= ____
- Sphere:surfacearea is 179 in
2
.
Radius= ___
- Tennisballswith a diameterof 3.5 inchesare sold in cansof three.The can is a cylinder. Assumethe
balls touchthe can on the sides,top and bottom.Whatis the volumeof the spacenot occupiedby the tennis
balls? - A spherehas surfacearea of 36π in^2. Find its volume.
- A giantscoop,operatedby a crane,is in the shapeof a hemisphereof radius= 21 inches.The scoop
is filledwith meltedhot steel.Whenthe steelis pouredinto a cylindricalstoragetank that has a radiusof
28 inches,the meltedsteelwill rise to a heightof how manyinches?
Answers
- Radius= 4.39 cm
- Surfacearea = 706.86cm^2
Volume= 1767.15cm^3
- Surfacearea = surfacearea of hemisphere+ surfacearea of cone= 678.58in^2
Volume= 2544.69in^3
- Volume= 268.08units^3
Surfacearea = 201.06units
2
- Height= 20/3 unitstotal surfacearea = 366.52units^2
- Diameter= 8.27 inches
- Radius= 3.77 inches
- Volumeof cylinder= 32.16πin3 volumeof tennisballs = 21.44πin^3
Volumeof spacenot occupiedby tennisballs = 33.67in^3
- Volume= 113.10in^3
- Heightof moltensteelin cylinderwill be 7.88 inches