200*pi feet, or approximately 628 feet. The formula for the circumference of a circle is C = 2*pi*r.
A circle with a radius of 100 feet has a circumference of 628.32 feet.
A circle with a radius of 100 units has a circumference of 628.32 units.
divide the circumference by pie (3.14) and the answer would be the radius. for example circumference = 314 pie = 3.14 so 314 divide by 3.14 = 100 so the radius = 100
100/360 of the circumference of the circle = 10*pi inches
If you double the radius of a circle, you also double its circumference.It's now 200% of what it was originally ... an increase of 100% .See rigorous proof below.===========================================Let radius = rCircumference = 2πrDouble the radius:New radius = 2rNew circumference = 4πrIncrease in circumference = 4πr - 2πr = 2πr = (2πr/2πr) X 100%=100%
A circle with a radius of 100 feet has a circumference of 628.32 feet.
A circle with a radius of 100 units has a circumference of 628.32 units.
divide the circumference by pie (3.14) and the answer would be the radius. for example circumference = 314 pie = 3.14 so 314 divide by 3.14 = 100 so the radius = 100
The radius of a circle is 1/2 of its diameter
Oh, dude, you're hitting me with some math now? Alright, so the circumference of a circle is just pi times the diameter. So, if the diameter is 100 feet, the circumference would be 100π feet. But like, who really measures things in terms of pi? Just round it to like 314 feet and call it a day.
100/360 of the circumference of the circle = 10*pi inches
100 feet.
100. The radius is 1/2 of the diameter.
The diameter of a circle whose circumference is 314 is about 1 (99.95).
If you double the radius of a circle, you also double its circumference.It's now 200% of what it was originally ... an increase of 100% .See rigorous proof below.===========================================Let radius = rCircumference = 2πrDouble the radius:New radius = 2rNew circumference = 4πrIncrease in circumference = 4πr - 2πr = 2πr = (2πr/2πr) X 100%=100%
The formula for finding the area of a circle is pi times the radius squared. Let's find the radius of the circle. 100 pi/ pi= 100. Squarerooted, the radius is 10. The formula for finding the circumference of a circle is 2 times pi times the radius. So, plug in: 2 times pi times 10 equals 20 pi! Your final answer: 20 pi (or, if you use decimals, approximately 62.8)
First find the radius and then the area will be pi*radius2 circumference = 2*pi*radius = 100 units radius = 100 divided by 2*pi = 15.91549431 units area = pi*15.915494312 = 795.7747155 square units So the area of the circle is 796 square units correct to three significant figures.