Question

Find the circumference of the circle.​

Answer 1

56.57 mi

Explanation:

Here a circle is given us and we are interested in finding out the circumference of the circle. Circumference is the length of the boundary enclosed by thr circle .

And the circumference is given by the formula,

C = 2πr , where r is the radius of the circle.

Now as per given figure, radius is 9mi .So on substituting the respective values, we have;

C = 2πr

C = 2*22/7 * 9mi

C = 56.57 mi

Hence the circumference of the circle is 56.57 mi.

Answer 2

• 18π or 56.52 mi

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Circumference formula:

• C = 2πr

As per picture, the radius is 9 mi.

Substitute this into formula to find the value of C:

• C = 2π*9 = 18π mi or
• C = 2*3.14*9 = 56.52 mi