since C=2Pixr, if we double r, we need to double C also. 2C=2Pix 2r
Clarity please!!!! 'Circumference of what??? Also what does the 8 cm represent . diameter, radius, diagonal etc., !!!!
We know that the radius is half of the diameter, and also that a circle's diameter multiplied by pi is the circumference, so we multiply 12 by 2 to get 24, then we multiply this by pi, so we can either express this as 24π units, or we can assume pi to be 3.1415926 and multiply this by 24 to get 75.3982224 units.
circumference equal two times 'pi' times radius. It is written algebraically as C = 2pir Since 2r = d (diameter) Then C = pi*d Also the area (A) of a circle is A = pi*r^(2) 'pi' is the constant of proportion of circles. NB For school work pi = 3.14 or pi = 3.1416 or pi = 22/7
When the diameter of the circle doubled, its circumference also doubled.However, its area increased to 4 times the original area, while nobody was looking.
The circumference also doubles.
The circumference also doubles.
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 circumference of a circle = 2*pi*r. if you triple r, the circumference is tripled also.
Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.
since C=2Pixr, if we double r, we need to double C also. 2C=2Pix 2r
The circumference of a circle is equal to its diameter times pi. This is also equal to two times its radius times pi.
It will also be halved as circumference = 2Ï€r
The circumference also doubles or trebles. The circumference is directly proportional to the radius, with the constant of proportionality = 2*pi.
The circumference is directly proportional to the radius. So increasing the radius by 50% causes the circumference to also increase by 50%.
The radius of a circle is any straight line from the centre of the circle to its circumference. The radius can also refer to the length of this line.
The circumference of a circle is 360 degrees. The circumference of a circle is also 2*pi*radius or diameter*pi.