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tankabanditka [31]
2 years ago
14

The curved surface area of a cylinder is

Mathematics
1 answer:
wel2 years ago
5 0

9514 1404 393

Answer:

  414.5 cm³

Step-by-step explanation:

The lateral area of a cylinder is given by the formula ...

  LA = 2πrh

Then the radius is ...

  r = LA/(2πh)

The volume of the cylinder is given by ...

  V = πr²h

Using the above expression for r, this becomes ...

  V = π(LA/(2πh))²h = LA²/(4πh)

  V = (250 cm²)²/(4π·12 cm) ≈ 414.47 cm³

The volume of the cylinder is about 414.5 cm³.

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Calculate the area shaded
Rudiy27

Answer:

7.722 cm^2

Step-by-step explanation:

Step 1: Find the area of the square.

  • Area of square = s^2, where s = side
  • 6^2 = 36 cm^2

Step 2: Find the area of the circle.

  • We are given the diameter of the circle as 6 cm, so the radius must be 3 cm.
  • Area of circle is \pi r^2, so now we plug in and simplify.
  • 3.142 * 3^2
  • 3.142 * 9
  • 28.278

Step 3: Subtract area of circle from area of square.

  • 36 - 28.278
  • 7.722

Therefore, the area of the shaded region is 7.722 cm^2.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0
2 years ago
Please help ASAP!! I'm in. a google meet rn and need to prove I got this question right
Aleks04 [339]

Answer:

x = 5.4

Step-by-step explanation:

(This question has already been answered, but both of the incorrect ones were deleted, so for future reference...)

Fig A is a scale image of Fig D. These two quadrilaterals are similar, and thus, the side lengths of corresponding sides are proportional. Set the proportion x/3 = 7.2/4 (you could alternatively write it as x/7.2 = 3/4 but for the simplicity's sake, and assuming anyone who has this problem would already know how to solve proportions like these...)

7.2/4 = 1.8

so

x/3 = 1.8

now multiply both sides by 3 to get x = 5.4

4 0
3 years ago
To improve his basketball skills, Troy decides to practice six times as many free throws and four times as many jump shots every
noname [10]
The answer is B. 6f+4j
6 0
3 years ago
Read 2 more answers
Ruby has a loss of $45 in her business. How will she enter the loss in her account book?
user100 [1]
-45 is the correct answer
9 0
3 years ago
Identify the underlined place in 83.5851. Then, round the number to that place.
djyliett [7]
So assuming the underlined decimal is the second 8, let's answer the question.

Hundreds: 0 | Tens: 8 | ones: 3 | . | tenths: 5 | hundredths: 8 | thousandths: 5 | 10 thousandths: 1

So since the second 8 is in the hundredths place, we know it's either B or C.

When we round for 5, we always round up, so the answer would be 83.59

So the answer is B.

Hope this helped! If you have any more questions or don't understand please comment or DM me. :)

6 0
3 years ago
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