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quester [9]
2 years ago
12

Please help me with this question 3.14 for pie

Mathematics
2 answers:
dangina [55]2 years ago
4 0

Answer:

25.12 is the circumference

Step-by-step explanation:

I hope that is what you meant!

aalyn [17]2 years ago
3 0

Answer:

28.27 inches^{2}

Step-by-step explanation:

To work this out you would first have to work out the area of the larger circle. You can achieve this by firs dividing the diameter of 10 by 2, which  gives you 5. This is because the radius is half of the diameter. You would then have to multiply pi by the radius of 5 squared, which gives you 78.54. Then the next step it is to work out the area of the smaller circle. To do this you would first need to divide the diameter of 8 by 2 to work out the radius, which gives you 4. Then you would multiply pi by the radius squared. which gives you 50.27. The final step is to minus 50.27 from 78.54, this gives you 28.27.

The formula for the area of a circle is : \pi *radius^{2}

1) Divide 10 by 2.

10/2=5

2) Multiply pi by 5 squared.

\pi *5^{2}=78.54

3) Divide 8 by 2.

8/2=4

4) Multiply pi by 4 squared.

\pi *4^{2} =50.27

5) Minus 50.27 from 78.54.

78.54-50.27=28.27

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