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Mekhanik [1.2K]
3 years ago
14

How to find the area of a circle with the circumference?

Mathematics
1 answer:
Anika [276]3 years ago
5 0
You can abuse the fact that PI is Circumference/diameter.

This means that, to find the diameter, you would have to do the following:

PI = circumference/diameter
(You can choose the number of decimals of PI, based on how accurate you want the diameter. 3.14 tends to work for most cases.)

After youve done this, you would be able to find the diameter like this:
PI*diameter = circumference
diameter = Circumference/pi

Then, you can use the diameter/2 to find the radius, like this:
radius = diameter/2

After this, you can simply use the formula for the surface area of a circle, like this:

SA = PI*Radius^2

I might be able to add an example, if really needed.
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Find out net profit after tax from the following information:
WARRIOR [948]

Answer:

Net Profit after tax Rs 15,000

Step-by-step explanation:

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3 0
3 years ago
Teri scored 64 points in the first 8 games she played in. she scored the same number of points in each game. how many points did
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4 0
3 years ago
Read 2 more answers
Pls help meeeeeeeeeeeee
Solnce55 [7]

Answer:

24%

Step-by-step explanation:

there are 50 numbers total

number of 4's: 7
number of 7's: 5

it's asking for the odds of a 4 or a 7 meaning that they're fine with either one. that means you can ADD the number of them up!

7 + 5 = 12

to get the odds, we need to divide!

  • 12/50 = ?
  • .24

convert that into a percent!

24%

let me know if you're still confused :))

7 0
2 years ago
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