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IgorLugansk [536]
3 years ago
15

What is the surface area of the right cylinder with a height of 20 and a radius of 5

Mathematics
2 answers:
Anna71 [15]3 years ago
6 0

For this case we have by definition, that the surface area of a cylinder is given by:

SA = 2 \pi * r * h + 2 \pi * r ^ 2

Where:

A: It's the radio

h: It's the height

According to the given data we have:

SA = 2 \pi * (5) * 20 + 2 \pi * (5) ^ 2\\SA = 200 \pi + 50 \pi\\SA = 250 \pi\\SA = 785 \ units ^ 2

ANswer:

785 \ units ^ 2

Alex17521 [72]3 years ago
3 0

Answer: The answer is 785.4

Step-by-step explanation: Equation is 2πrh+2πr²

Plug in your numbers and hit enter!

Hope this helps

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The area of the shape is 18cm^2

Step-by-step explanation:

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hammer [34]

Answer:

We can expect 8255 numbers of students are liberal arts majors.

Step-by-step explanation:

Given:

Total Number of students in the college = 8943

Now According to Mr. Jones Survey;

60 out of 65 students are liberal arts majors.

We need to find the number of students who are liberal arts majors out of total number of students in college.

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First we will find the Percentage number of students who are liberal arts majors according to survey.

Percentage number of students who are liberal arts majors can be calculated by dividing 60 from 65 then multiplying by 100.

framing above quote in equation form we get;

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Now we will find the Total number of students who are liberal arts major.

Total number of students who are liberal arts major can be calculated by Multiplying Percentage number of students who are liberal arts majors with total number of students in the college and then dividing by 100.

framing above quote in equation form we get;

Total number of students who are liberal arts major = \frac{92.31}{100}\times 8493 \approx8255.28

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