If the diameter is 50ft, then the radius r = 25ft. Then, A = pi*r^2 = pi*(25^2) = 625pi sq ft.
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625*pi, or approximately 1,963 square feet This is the answer for square feet or area of the circle. pi*radius squared . The linear feet or circumference is found by multiplying the diameter times pi. answer is 50*pi or about 157 feet rounding pi to 3.14
area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm
For A+ 7.22The area of a sector of a circle is proportional to the angle at the center of the sector, with 360 degrees corresponding to the full circle. Therefore, the area of the total circle for which the problem is stated is 50 X 360/110 = about 163.6 square units. The area of a circle is also equal to pi multiplied by the square of the radius of the circle, so that the radius r of this circle equals the square root of 163.6/pi = about 7.217 units. The circumference of the circle is also twice the radius multiplied by pi = 45 units, to the justified number of significant digits (limited by "50").a+ 45.33
If you have a circular area with a 50-mile radius, the area of the circle is approximately 7,854 square miles (rounded).
Circumference = 2*pi*r = 314.16 ft (to 2 dp)