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3 years ago

How do i find the volume of a cylinder?

Mathematics

1 answer:

mestny [16]3 years ago

5 0

Hi there! The answer is 226 in^3

Like you've already written it down, the formula of the volume of a cylinder is
$volume \: = \: base \: \times \: height$

Since the base of any cylinder is a circle, we can find the area of this circle with the formula
$a \: = \pi \: {r}^{2}$
With r representing the radius.

Therefore, the volume of any cylinder can be found with the formula
$v \: = \pi \: {r}^{2} \: h$
With h representing the height.

Filling in this formula gives us the following
$v \: = \pi \times {3}^{2} \times 8 = 226.08$
Hence, the volume of this cylinder is about 226 in ^ 3.

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A car on a racetrack drove 98 miles in 60 minutes. How far did it drive in 12 minutes? Round the the nearest tenth when necessar

Alborosie

Answer:

19.6 miles in 12 minutes.

Step-by-step explanation:

first take 60, then divide it by 12.

60÷12=5

then take 98 and divide that by 5

98÷5=19.6

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3 years ago

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3 years ago

P- (9-(m + q)); use m=4, p=5, and q=3

Tcecarenko [31]

Answer:

Step-by-step explanation:

p-(9-(m+q))

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3 years ago

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natima [27]

Answer:

$22.50

Step-by-step explanation:

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3 years ago

alec is climbing a 14 foot ladder where the rungs are 3/4 of a foot apart. there is one foot of space on each end of the ladder

Aleks [24]

Answer:

Alec is climbing 17 rungs on the ladder of 14 feet ( including first and last rung ) .

Step-by-step explanation:

Given:

Length of the ladder = 14 foot

Distance between Rungs in ladder = $\frac{3}{4}$

There is one foot of space on each end of the ladder before the first and last rung .

To Find:

Number of rungs are on the ladder =?

Solution:

Let us assume there are 3 rungs. Between 3 rungs there will be two spaces. between four rungs there will be 3 spaces , so between n + 1 rungs there will be n spaces.

Given that length of the ladder = 14 feet

There is one foot of space on each end before the first and last rung.

So length of the ladder between first and last rung = 14 – 2 ( 1 foot of each side) = 12 feet

As distance between each rung = $\frac{3}{4}$

Number of $\frac{3}{4}$ spaces in ladder of 12 feet = $\frac{( 12)}{\frac{3}{4}}$

Number of $\frac{3}{4}$ spaces in ladder of 12 feet= $\frac{(12\times4)}{3}$

Number of $\frac{3}{4}$ spaces in ladder of 12 feet= $\frac{(48)}{3}$

Number of $\frac{3}{4}$ spaces in ladder of 12 feet =16

And as for n spaces there will be n + 1 rungs, so for 16 spaces there will be 16 + 1 = 17 rungs.

6 0

3 years ago