Question

The formula for the circumference of a circle is C = 2πr, where r is the radius and C is the circumference.
The equation for r is = C / 2π
Find the radius of a circle that has a circumference of 16π

r = 4
r = 8
r = 12
r = 16

Answer 1

given ,r=C/2π=16π/2π=8 is the required answer.

Answer 2

r = 8

The radius of a circle that has a circumference of 16π, is 8.

Given data:

Given, the formula for the circumference of a circle is C = 2πr, where r is the radius and C is the circumference.

Also, the equation for r is = C / 2π

To find:

The radius of a circle that has a circumference of 16π

Step-by-step explanation:

Given, the equation for r is = C / 2π ... ... (i)

When C = 16π, from (i), we get

r = 16π / 2π

➜ r = 8

So, radius is 8.

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