SOLUTION: What is the circumference and area in feet of a circular pool that has a diameter of 20 yards?

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Question 125666: What is the circumference and area in feet of a circular pool that has a diameter of 20 yards?
Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
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Question:
What is the circumference and area in feet of a circular pool that has a diameter of 20 yards?

Answer:

Circumference of a circle is given by the formula, C = 2(pi)r, where r denotes the radius of the circle... and the value of pi is 3.14 approx

here diameter = 20 yards.

==> radius= 20%2F2 = 10 yards.

Therefore, Circumference = 2*3.14* 10

==> C = 6.28 yards.


Now area of a circle os given by the formula,
+A+=+pi%2A+r%5E2


==> +A+=+3.14%2A+%2810%29%5E2


==> +A+=+3.14%2A+100


==> +A+=+314+ square yards.


Hope you found the explanation useful.


Regards.

Praseena.