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Volume of Prisms and Cylinders Homework Help? Link below

https://snag.gy/Xr2IMW.jpg

https://snag.gy/ACXpZ5.jpg

Please show the steps. Thanks
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ryan234
3
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
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)
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!
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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