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erin3746
Junior Member

USA
4 Posts

Posted - 08/20/2007 :  16:40:44  Show Profile
i desperately need help:


1.a safe has a cubical storage space inside. what is the volume of a safe with an interior length of 14 inches?



2. A circular area rug has a radius of 2.5 feet. How much area does the rug cover?(the area of a circle is A= r where = 3.14 and r is the radius.)


3. When blown up, a beach ball has a radius of 12 inches. How much air, in cubic feet, is needed to blow up the beach ball?( the volume of a sphere is V= 4/3r where =3.14 and r is the radius.)



4. A can has a radius of 2.1 inches and a height of 7 inches. What is the volume of the can?(the volume of a cylinder is V=rh where =3.14, r is the radius, and h is the height.)
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peppers18
Advanced Member

Canada
124 Posts

Posted - 08/20/2007 :  16:47:43  Show Profile
what do you need help on? all dimensions are given and all formulae are given. looks pretty self-explanatory
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erin3746
Junior Member

USA
4 Posts

Posted - 08/20/2007 :  16:59:22  Show Profile
i am just kind of unsure of my answer
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peppers18
Advanced Member

Canada
124 Posts

Posted - 08/20/2007 :  18:35:07  Show Profile
show us your answers, and the steps you used to get them, and we can see if you are off track or not
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