Question

Find the circumference of the circle. Round your answer to the nearest inch.The image shows a circle with radius 4 inches.To the nearest inch, the circumference of the circle is_______ inches.The solution is ________

Answer 1

To find the circumference of a circle, we need to apply the next formula:

$C=2\cdot\pi\cdot r$

We have that

$\pi\approx3.14159265359$

• r = 4 inches.

Then, the circumference of this circle is:

$C=2\cdot\pi\cdot4in=25.1327412287in$

If we round this value to the nearest inch, we have that the circumference is equal to 25 inches (C = 25 inches).