Sand poured from a grinder forms a conically shaped pile. When the pile is 28 feet in diameter and 12 feet high, how many cubic yards of sand are in the pile?
An ice cream scoop is in the form of a cone 3 inches in diameter and 3 inches deep. How many cubic inches of ice cream does it hold?
A conical funnel is made of tin. The diameter is 5 inches and its slant height is 7 inches. If the tin used in making the funnel is 1.1 times the lateral area, how much tin was used?
An ice cream cone is 1 3/4 inches in diameter and has a slant height of 4 inches. How many square inches of pastry are there in 500 such cones?
A steel paperweight in the form of a cone is 3 inches high and has a radius of 1 1/4 inches. Find its wieght if 1 cubic inch weighs 4.5 ounces.
2006-10-10 05:16:24 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
volume=(1/3)pi r^2 h
=(1/3)pi (14)^2*12
(1/3)(22/7)*14*14*12=2464 cft
=273.8 cu.yds
2.volume=(1/3)(3.14)*3/2*3/2*3
7.065 cu.in
3.lateral area=pi*r*l
=22/7 *5/2 *7=55
1.1 times 55=60.5 sq.in tin was used
4.total surface area=pi*r(l+r)
=22/7*7/88(7/8+32/8)
=(1/4)(39/8)=39/32 sq.in.
5.weight =vol*density
=(1/3)(22/7)*(5/4)(5/4)*3*4.5 oz.
=22.1 oz.
2006-10-10 05:37:07 · answer #1 · answered by raj 7 · 0⤊ 0⤋
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2016-10-02 03:59:06 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Do your own homework
Here is a link to the formula for finding the volume of a cone
2006-10-10 05:19:49 · answer #3 · answered by silligrl357 4 · 2⤊ 0⤋
Do your homework your self - a better question would have been how do you work out the volumn of a cone?
2006-10-10 05:18:33 · answer #4 · answered by thebigtombs 5 · 2⤊ 0⤋
Get a tutor. You can't have everyone else do your homework, you will never learn anything. And what will happen when test time comes??
2006-10-10 05:20:00 · answer #5 · answered by Michelle 3 · 1⤊ 0⤋
Ask god. He might know. lol
2006-10-10 06:17:13 · answer #6 · answered by rljmmp 3 · 0⤊ 0⤋