What is the formula for the volume of a cylinder?
Volume of Cylinders

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•
Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
V = πr²h, where V is volume, r is the radius of the base, and h is the height.
2.
FLASHCARD QUESTION
Front
If a cylinder has a radius of 5 cm and a height of 10 cm, what is its volume?
Back
V = π(5 cm)²(10 cm) = 250π cm³ ≈ 785.4 cm³.
3.
FLASHCARD QUESTION
Front
What does π (pi) represent in the volume formula?
Back
π is a mathematical constant approximately equal to 3.14, representing the ratio of the circumference of a circle to its diameter.
4.
FLASHCARD QUESTION
Front
How do you round a number to the nearest tenth?
Back
Look at the hundredths place; if it's 5 or more, round up the tenths place by one. If it's less than 5, keep the tenths place the same.
5.
FLASHCARD QUESTION
Front
What is the volume of a cylinder with a radius of 3 cm and a height of 4 cm?
Back
V = π(3 cm)²(4 cm) = 36π cm³ ≈ 113.1 cm³.
6.
FLASHCARD QUESTION
Front
What is the relationship between the radius and diameter of a cylinder?
Back
The diameter is twice the radius. d = 2r.
7.
FLASHCARD QUESTION
Front
If the height of a cylinder is doubled, how does that affect the volume?
Back
The volume also doubles, since volume is directly proportional to height.
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