Question: What is the area of a circular pond 55 yards across?
The area of a circle is given by
A = πR^2, where R is the radius of the circle.
We are given that the pond is 55 yds across. i.e. its diameter is 55 yds, so its radius will be R = 55/2 = 27.5 yds.
A = π*(27.5)^2 = π*756.25
Answer: area of pond is 756.25π square yds