Area = pi*r2 where r = d/2 = 3/2 or 1.5 ft So area = 7.07 sq ft
6 ft
Area = (1/4)*Ï€*d2 where d is the diameter. So area = pi*121/4 = 95.033 sq ft (to 3 dp)
Diameter: 14.5/pi = 4.615 ft to 3 decimal places
7.065
The area is the same as that of a big 20 ft circle. Assuming the 20 ft refers to the diameter of the circle, its area is 314.159 sq ft (to 3 dp)
A circle with a 49 ft diameter would have an area of 1885.741 sq ft (to 3 dp)
Area = pi*r2 where r = d/2 = 3/2 or 1.5 ft So area = 7.07 sq ft
Area of a circle = (pi) x (Radius)2Radius2 = Area/piRadius = sqrt( area/pi )Diameter = 2 x radius = 2 x sqrt( area/pi ) = 2 x sqrt( 3/pi) = 1.954 ft (rounded)
Area = pi*202 = 1256.637 square feet to 3 d.p.
Diameter of circle: 13/pi = 4.138 ft to 3 decimal places
The area of a circle that has diameter of 3 cm is: 7.069 cm2
diameter is 3 ft diameter = 2*radius diameter/2 = radius 3/2 = 1.5 ft = radius area is pi * radius2 3.14 * (1.5)2 3.14 * 2.25 = 7.065 sq ft
The area of a circle is calculated using the formula A = πr^2, where A is the area and r is the radius of the circle. Since the diameter of the circle is 12 inches, the radius would be half of that, which is 6 inches. Converting inches to feet (1 foot = 12 inches), the radius would be 0.5 feet. Plugging this into the formula, the area of a 12-inch circle would be approximately 0.785 square feet.
6 ft
Area = (1/4)*Ï€*d2 where d is the diameter. So area = pi*121/4 = 95.033 sq ft (to 3 dp)
Diameter of the circle = 529.257 feet rounded to 3 decimal places