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STatiana [176]
3 years ago
13

The diameter of a circle is 40 m. Find the area of the circle in terms of pi

Mathematics
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer: 400π

Step-by-step explanation:

The formula for the area of a circle is πr²

First you have to calculate the radius by halving the diameter so radius is 20m.

Then you put in your calculator πx20²

This equals 400π (in terms of pi).

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Answer:

5 units

Step-by-step explanation:

Given:-

- The area of the circle was computed to be A = 78.5

- The value of π is estimated to be = 3.14

Find:-

What is the radius of the circle?

Solution:-

- The area of a circle (A) with radius ( r ) is computed by the following formula:

                            A = π*r^2

- Divide the equation by π :

                            r^2 = ( A / π )

- Take the square root of the entire equation:

                            r = √ ( A / π )

- Substitute the given values:

                           r = √ ( 78.5 / 3.14 )

- Resolve the fraction:

                          r = √25

- The perfect square root of 25

                         r = 5

Answer: The radius of the circle is r = 5 units

                         

3 0
3 years ago
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Ariana’s annual(year) pay is $34,320. What is her average gross pay?
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Answer:

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Answer:

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Degger [83]
Or the other is 1/6
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3 years ago
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