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5 votes
need help with all of these questions you see on the top. there the red squares. please someone smart. this is one of the problems I need to finish this tonight​

need help with all of these questions you see on the top. there the red squares. please-example-1

2 Answers

3 votes
Answer: 254.3 ft^3

Explanation:

Height (h) = 1 ft
Radius (r) = 9 ft
Pi (π) = 3.14

Volume of Cylinder = πr^2h

Therefore,
=> πr^2h
= π * r * r * h
= 3.14 * 9 * 9 * 1
= 28.26 * 9 * 1
= 254.34 * 1
= 254.34

Rounding off to nearest 10th = 254.3
Volume of Cylinder = 254.3 ft^3
User Kmek
by
4.3k points
12 votes

Answer:

254.5 ft^3

Explanation:

The volume of a cylinder is the area of the base times its height. To find the area of the base, since it is a circle, you would use the area formula of a circle(
\pi r^(2) where r is the radius). So, the circle would have an area of 81 π. Now, multiplying this by the height, you get the volume. Since the height is just 1, the volume would be 81π which is 254.469004941. This rounded to the nearest tenth is 254.5.

User Jkelley
by
4.5k points