Pi X D = Circumference. To find Diamater if you know Circumference, divide Circumference by Pi (3.14).
Divide the circumference by the value Pi - this will give you the diameter.
By dividing the circumference by 2*pi will give you the radius and twice the radius gives you the diameter.
to find the circumference of a circle, which is the distance in the outside of the circle you need to use the following formula: C=dx 3.14 or circumference equals diameter times pi. The diamater is the length of the circle from end to end. Not very difficult.
Divide by pi to get the diameter. Divide the diamater by 2 to get the radius. Pi times radius squared.
so 42cm = 16 is 26cm if the difference between the other 2 was the LCM, it would equal more than 42. This is impossible to calculate
To find the circimfrence you need to do PI x Diameter Example: If the radius is 6 Yds and they are asking you do find the circumference you would do the formula. soooo...... 3.14 x diameter. We don't have the diamater but If we know the radius then we could find that out by doubling that number. soooo.... 6+6=12 soooo..now you would do...... 3.14 x 12= 37.68 ***and always remember. You need to know this. PI=3.14 orrr.................22/7
You double the radius.. if the radius is 10 the diameter is 20.
(circumference=2πr or πd) so the circumference in exact form would be π726.4
the way you find the circumference is 2xpixr or pixdiameter. so it would be 2x80xpi
it would be pi * radius squared
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44?