How much fencing is needed to enclose a circular pond with diameter 12.5 feet? A. 37.5 feet B. 19.625feet C. 98.5feet D. 39.25feet
So is the answer D or C?
pi * D = circumference = 3.14159 * 12.5
To find out how much fencing is needed to enclose a circular pond, we need to calculate the circumference of the circle. The formula for the circumference of a circle is C = πd, where C represents the circumference and d represents the diameter.
In this case, the diameter of the pond is 12.5 feet. To find the circumference, we can plug this value into the formula:
C = π × 12.5
Using an approximate value for π (pi) of 3.14, we can calculate the circumference:
C ≈ 3.14 × 12.5
C ≈ 39.25 feet
So, the correct answer is D. 39.25 feet.
I am not telling. What did you get for 3.14 * 12.5 ?
hint:
3 * 13 = 39