Practice Surface Area And Volume Of A Sphere And Hemisphere (4.5)

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10 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the surface area formula for a sphere?
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Think of it like painting a round ball.
Question 2.
What is the volume of a hemisphere with a radius of 2 cm?
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Remember to halve the sphere's volume.
3Question 3.
What is the surface area of a sphere with a radius of 3 cm?
- 12π cm²
- 36π cm²
- 9π cm²
- 24π cm²
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Make sure to square the radius before multiplying by 4π.
4Question 4.
Is the formula for volume of a hemisphere half that of a sphere?
- True
- False
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Think about the spatial dimensions; a hemisphere is simply half the sphere.
Question 5.
A chocolate cake is shaped like a hemisphere with a radius of 8 cm. Calculate the volume and total surface area including the base.
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Remember to use the volume formula for a hemisphere, then include the base for total surface area.
Question 6.
A soccer ball has a diameter of 22 cm. Find its volume and surface area.
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Convert diameter to radius by dividing by 2 first, and then apply the formulas.

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