janessia
Find the volume of a cone with radius = 3 m and height = 10 m. Round your answer to the nearest m3.
Choose one answer.
a. 30 m^3
b. 90 m^3
c. 94 m^3
d. 283 m^3
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janessia
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@jim_thompson5910
jim_thompson5910
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Area of the base = ???
janessia
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with area of a circle do i use pi?
jim_thompson5910
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|dw:1354916030577:dw|
jim_thompson5910
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yes all circle equations use pi
jim_thompson5910
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do you know the area of a circle formula?
janessia
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is it 28.26?
jim_thompson5910
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close enough, now multiply this by the height
janessia
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oh A=pi*r^2 right?
janessia
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k
janessia
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282.6
janessia
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283
jim_thompson5910
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now divide this by 3
janessia
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oh 94.2
janessia
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or 94
jim_thompson5910
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a cone is a pyramid (a special type of pyramid---with a circular base)
janessia
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thank you soo much!!