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When the radius of a circle is doubled what happens to the circumference?
since C=2Pixr, if we double r, we need to double C also. 2C=2Pix 2r
What is the circumference of 8cm?
Clarity please!!!! 'Circumference of what??? Also what does the 8 cm represent . diameter, radius, diagonal etc., !!!!
A circle has a radius of 12 yards what is its circumference?
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.
What is the equation for finding the circumference of a circle from the radius?
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 a circle doubled what happens to the circumference of the circle?
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.
