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OpenStudy (anonymous):
An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom half of the hourglass full of salt, how much salt will you need? Explain the method you would use to find the amount of salt
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OpenStudy (mathstudent55):
|dw:1422912635973:dw|
OpenStudy (mathstudent55):
What is the shape of the bottom half of the hourglass?
OpenStudy (anonymous):
cone
OpenStudy (anonymous):
@mathstudent55
OpenStudy (mathstudent55):
Good. The amount of sand that fits is the volume of the cone. You need the formula for the volume of a cone. Do you know it?
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