The circumference C of a circle with radius r can be calculated using the formula
C=2πr. Which formula represents r in terms of C ?

A) r=2πC

B)r=C-2π

C)r=Cπ/2

D)r=C/2π

The circumference of a circle is defined as the distance around the circle.

The formula that represents r in terms of C is r =  C/ 2π. The correct option is Option D

From the question, we are given the formula for the circumference of the circle C as :

C = 2πr

To represent in terms of C,

2πr = C

Divide both sides by 2π

2πr/2π = C/ 2π

r =  C/ 2π

Therefore,  the formula that represents r in terms of C is r =  C/ 2π. The correct option is Option D

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D

Step-by-step explanation:

Given

C = 2πr ( isolate r by dividing both sides by 2π )

= r → D

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: