circumference = 2*pi*100
A circle with a radius of 100 units has a circumference of 628.32 units.
A circle with a radius of 100 feet has a circumference of 628.32 feet.
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
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%
By eating a pie
A circle with a radius of 100 units has a circumference of 628.32 units.
A circle with a radius of 100 feet has a circumference of 628.32 feet.
If 50' is the diameter, 50 x pi, if 50' is the radius, 100 x pi.
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
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%
It is: 2*pi*100 meters
By eating a pie
The radius of a circle is defined as the distance from the center of the circle to any point on its circumference. If the radius is 100 cm, this means that the distance from the center of the circle to its edge is exactly 100 cm. Thus, the radius itself is simply 100 cm.
Circumference = 20 pi so radius = 10 so area = 100 pi squnits
the formula for finding a circumference is pi * r2 or 3.14 times the radius squared SO if you had 20 as the diameter the radius would be 10 times 10 is 100 so an example wouldbe pi * 100=??
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.