Volume of Prisms and Cylinders Homework Help? Link below

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Don'tKnowAName
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https://snag.gy/Xr2IMW.jpg

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Please show the steps. Thanks
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ryan234
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questions 1) 1st work out the surface area. Work out the area of the square and then add that to the 3 quarters of the circle as a quarter is inside the square. Then multiply this number by the height.
an extremely quick calculation got 47265 but that could be wrong
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CraigFowler
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Generally speaking, the volume of a prism is the cross sectional area times the length

Guy above gave correct answer, area of square plus 3/4 area of circle (pi * radius squared) all times by the height

Second question, add up the area of the six rectangles and add the four triangles |(1/2 times base times height) then times this cross sectional area by the length (in this case 12m)
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Don'tKnowAName
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(Original post by CraigFowler)
Generally speaking, the volume of a prism is the cross sectional area times the length

Guy above gave correct answer, area of square plus 3/4 area of circle (pi * radius squared) all times by the height

Second question, add up the area of the six rectangles and add the four triangles |(1/2 times base times height) then times this cross sectional area by the length (in this case 12m)
Thank you!
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Don'tKnowAName
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(Original post by ryan234)
questions 1) 1st work out the surface area. Work out the area of the square and then add that to the 3 quarters of the circle as a quarter is inside the square. Then multiply this number by the height.
an extremely quick calculation got 47265 but that could be wrong
Thanks it's right!
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