Everything Maths Grade 10

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10.The figure here shows a pyramid with a square base. The sides of the base are each 4 units long. The
vertical height of the pyramid is 8,77 units, and the slant height of the pyramid is 9 units. Determine the
surface area of the pyramid.

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8,dd

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11.The figure here is a cone. The vertical height of the cone isH=7,41 units and the slant height of the
cone ish=8 units; the radius of the cone is shown,r=3 units. Find the surface area of the figure.
Round your answer two decimal places.

7,41^8

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12.The figure below shows a sphere. The radius of the sphere isr=3 units. Determine the volume of the
figure. Round your answer to two decimal places.

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13.The figure here is a cone. The vertical height of the cone isH=7 units and the slant height ish=8,60
units; the radius of the cone is shown,r=5 units. Find the volume of the figure. Round your answer to
two decimal places.

460 13.5. Chapter summary