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$1.00 A circle has radius of 7.5cm. A sector w

From Mathematics: General-Mathematics
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Due on Dec. 13, 2008
Asked on Dec. 10, 2008 at 08:57:57AM

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rexwolf
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A circle has radius of 7.5cm. A sector with an angle of 240 degrees is cut out from the circle, find the lenght of the arc of the sector , also if the sector is folded to form a cone, find ,correct to one decimal place;
The radius of the cone
The height of the cone
The volume of the cone
The curved surface area of the cone
(Take pie = 3.142)