Question

What is the area of a cirlce with the diameter of 42ft​

Answer 1

1384.74

Explanation:

diameter = 42

radius = 42/2 = 21

area of a circle = πr2 (pie r square)

= 3.14 X 21 X 21

=1384.74 sq.ft

Answer 2

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Answer:

Your answer would be 1,385.44 ft²

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Explanation:

To find the area of a circle, we would use the equation
`\pi r^2`

In this case we have the diameter, and that's 42.

The radius of a circle is half of the diameter, therefore the radius would be 21.

Now we know the radius,we can plug that in to our equation.

Your equation should look like this:

`\pi (21)^2`

Pi would be 3.14159

Now, you can solve.

`3.14159(21)^2\\\\3.14159*441\\\\=1,385.44`

When you'r edone solving, you should get 1,385.44

1,385.44 ft² would be your FINAL answer.

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