Find out the area of the cross section (the triangle in this case) which is 1/2 the base x the height. Lastly, thimes that answer by the length of the prism.

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volume of a cylinder

Find the area of the cross section (the circle) pi x radius squared. Times by length.

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volume of a cube

length x width x height

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volume of a cuboid

length x width x height

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Surface Area of a cuboid

Work out the area of all the parts of the cuboid. The front, back, left side, right side, bottom and top. Then add all your answers up to find your total.

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Surface Area of a cube

Work out the area of all the parts of the cuboid. The front, back, left side, right side, bottom and top. Then add all your answers up to find your total.

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Surface area of a triangular prism

Work out the area of the slope (a rectangle- length x width) then the bottom (also a rectangle- length x width) then work out the area of the front triangle (1/2 base x height) then the back triangle (1/2 base x height) Add up all for total answer

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