It is 14 cm.
28 pi cm, about 88 cm
Well, honey, the circumference of a circle is calculated using the formula C = 2πr, where r is the radius. Since you didn't give me the radius, I can't give you the exact circumference. But if the diameter is 56 cm, then the radius would be half of that, which is 28 cm. Plug that into the formula and you'll get your answer.
Curved surface area: pi*21*28 = 1847.256 square cm rounded to three decimal places
The radius of a 2 cm circle is: 1 cm
14 cm
It is 14 cm.
Diameter = 2*radius = 28 cm
28 pi cm, about 88 cm
The radius is 28 cm so the circumfecrence is 2*Ï€*28 cm = 56Ï€ cm which is the distance travelled by 1 revolution. So the distance travelled in 300 revolutions = 300*56Ï€ cm = 16800Ï€ cm = 52778.76 cm = 527.8 metres approx
The diameter would be 28 cm.
Using 3.14 as Pi the area of circle is: 2461.76
If it is a 7.1 cm radius circle, then its radius is exactly 7.1 cm!
Curved surface area: pi*21*28 = 1847.256 square cm rounded to three decimal places
Area = 22/7*282 = 2464 square cm
The radius of a 2 cm circle is: 1 cm
The radius is 5 cm.