Practice Summary (11.5) - Surface Areas And Volumes

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8 questions

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4 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Find the curved surface area of a cone with radius 3 cm and slant height 4 cm.
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Use the formula C.S.A = πrl.
Question 2.
What is the total surface area of a sphere with radius 5 cm?
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Recall the formula 4πr².
3Question 3.
What is the formula for the total surface area of a cone?
- πrl
- πr(l + r)
- 4πr²
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Think about the round shape and the flat base.
4Question 4.
True or False: The volume of a sphere is equal to 4/3πr³.
- True
- False
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Remember the fraction involved with the volume.
Question 5.
A cone has a height of 12 cm and a radius of 5 cm. Find its volume and total surface area.
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Use Pythagorean theorem to find the slant height first.
Question 6.
If a sphere has a surface area of 400π cm², what is its radius and volume?
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Remember how to rearrange the surface area formula to solve for radius.

4 more questions in this section. Enroll free to practise them all.