Find the circumference of a circle with a radius of $4$ units.
Answer 1
To find the circumference of a circle, we use the formula:
$ C = 2\pi r $
Given that the radius \( r = 4 \) units, we substitute this value into the formula:
$ C = 2 \pi \times 4 $
$ C = 8 \pi $
Therefore, the circumference is \( 8\pi \) units.
Answer 2
The circumference ( C ) of a circle can be calculated using the formula:
$ C = 2pi r $
Here, the radius ( r ) is ( 4 ) units. Plugging in this value:
$ C = 2 pi imes 4 $
$ C = 8 pi $
Hence, the circumference is ( 8pi ) units.
Answer 3
The formula for the circumference is:
$ C = 2pi r $
With a radius of 4 units:
$ C = 2 pi imes 4 = 8pi $
The circumference is ( 8pi ) units.
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