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 diameter of a 100-unit circumference circle is: 31.83 units.
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
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.