The radius of a football is between 68 and 70 centimetres.
18.4 inches
68
68
68 x 68 = 4624
The area of a circle is calculated by multiplying the square of its radius by pi and can thus be represented with the equation: A = πr^2 where A= area and r=radius. The radius of a circle is equal to half its diameter. Consequently the first step to answering this question would be calculating the radius of the circle. r= d/2 = 68/2 =34 miles This means that the formula to calculate the area for a circle with a diameter of 68 miles would be: A = π(34^2) Working this through would give us: A = π(34^2) = 1156 π = 3631.68 square miles (2 d.p.)
If the diameter is 68, then the radius is 34. 3.14 * 34^2 = 3629.84
First, divide the circumference by Pi (about 3.1416): 68 / 3.1416 = 21.65 cm. This is the diameter. Now, divide the diameter by two to get the radius: 21.65 / 2 = 10.825 cm.The radius is: 10.825 cmNote: The result will vary slightly depending on the value you use for Pi
C (Circumference) = 3.14 (pi)*D (diameter) r (radius) = 0.5D and D = 2r So circumference can also be C=3.14*2r Then, solve 68 = 3.14*2r to get r = 10.83
34 / pi
3,631.68 square units.
The radius of a .68 caliber paintball round is half of its diameter. Since the caliber is given in inches, the radius would be 0.34 inches.
Area of circle = pi*r^2 so......... 68 sqr ft = pi * r^2 divide both sides by pi 21.645 = r^2 take square root of each side 4.7 feet = the radius of this circle
The diameter will be: 68/pi
Ther are: pi*342 = 1156pi square inches
68 pi mm ie 213.6 mm to the nearest tenth
68 meters = 74.3657043 yards