Volume of a cylinder

Difficulty Starter · Set 1w44qv

Take π as 3.14 and give the answer to two decimal places.

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1
A cylinder has radius 3 cm and height 3 cm. What is its volume, in cubic cm?
2
A cylinder has radius 2 mm and height 5 mm. What is its volume, in cubic mm?
3
A cylinder has radius 3 cm and height 4 cm. What is its volume, in cubic cm?
4
A cylinder has radius 3 m and height 3 m. What is its volume, in cubic m?
5
A cylinder has radius 2 cm and height 6 cm. What is its volume, in cubic cm?
6
A cylinder has radius 3 m and height 5 m. What is its volume, in cubic m?
7
A cylinder has radius 3 cm and height 3 cm. What is its volume, in cubic cm?
8
A cylinder has radius 2 mm and height 3 mm. What is its volume, in cubic mm?
9
A cylinder has radius 3 cm and height 3 cm. What is its volume, in cubic cm?
10
A cylinder has radius 2 mm and height 3 mm. What is its volume, in cubic mm?
11
A cylinder has radius 3 cm and height 5 cm. What is its volume, in cubic cm?
12
A cylinder has radius 2 m and height 5 m. What is its volume, in cubic m?
13
A cylinder has radius 3 m and height 4 m. What is its volume, in cubic m?
14
A cylinder has radius 3 mm and height 4 mm. What is its volume, in cubic mm?
15
A cylinder has radius 2 mm and height 4 mm. What is its volume, in cubic mm?
16
A cylinder has radius 2 m and height 6 m. What is its volume, in cubic m?
17
A cylinder has radius 2 m and height 3 m. What is its volume, in cubic m?
18
A cylinder has radius 2 m and height 5 m. What is its volume, in cubic m?
19
A cylinder has radius 2 mm and height 4 mm. What is its volume, in cubic mm?
20
A cylinder has radius 3 m and height 5 m. What is its volume, in cubic m?

What is in this set

The numbers in this set run from 2 to 6.
A careful solution takes 3 written steps on average.
The mistake this set invites most often, in 47% of the problems: the radius was doubled instead of squared; the volume is the circle’s area, πr², times the height.
Answers are a decimal.

Drawing 240 problems from this page produced 24 different ones, 10% — so a sheet of 20 will come back to a problem you have seen — there are only so many sensible ones of this kind.

The same skill, harder or easier

We would put this in front of a grade 8 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.