HSPT Math : Concepts

Study concepts, example questions & explanations for HSPT Math

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Example Questions

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Example Question #2125 : Hspt Mathematics

A sphere has diameter 12. What is 75% of its surface area?

Possible Answers:

Correct answer:

Explanation:

The radius of a sphere is half its diameter, which here is 12, so the radius is 6. The surface area of the sphere can be calculated by setting  in the formula:

75% of this is

Example Question #2126 : Hspt Mathematics

Cylinder

Which expression is equal to 40% of the surface area of the above cylinder?

Possible Answers:

Correct answer:

Explanation:

The surface area of the cylinder can be calculated by setting  and  in the formula

40% of this surface area is

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