Question 125666
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= {{{20/2}}} = 10 yards.


Therefore, Circumference = 2*3.14* 10


==> C = 6.28 yards.



Now area of a circle os given by the formula,

{{{ A = pi* r^2}}}



==> {{{ A = 3.14* (10)^2}}}



==> {{{ A = 3.14* 100}}}



==> {{{ A = 314 }}} square yards.



Hope you found the explanation useful.



Regards.


Praseena.