49 cm2
784 square feet
Diameter equal 2r (d=2r) So if your Diameter is 28 then: 28=2r (divide 2 on both sides) 14=r therefor the radius is 14
The diameter would be 28 cm.
Multiply the diameter by pi, which is about 3.14.
420 square meters
28 square centimeters
615.75
A standard American football is approximately 28 centimeters long. In contrast, a soccer ball (football in many countries) has a circumference of about 68 to 70 centimeters, which translates to a diameter of roughly 22 to 22.5 centimeters. Thus, depending on the type of football, the length or diameter can vary, but a typical American football measures around 28 centimeters.
The volume of a glass cylinder with an inside diameter of 6.0 cm and height of 28 cm is 791.68 cubic cm.
area of a circle = pi time r2 A diameter of 28 feet means a radius of 14 feet area = pi times 196 or 615.75 square feet
The diameter is 5.97 inches.
28 inches=71.12 centimeters
2,800 centimeters
7*7 = 49 square cm
The area of a circle with the diameter of 28 inches is: 615.8 square inches OR 4.28 square feet.
If the area of a circle is about 28 square inches the diameter is: about six inches (5.971).
71.12cm (There are 2.54 centimeters per inch).