If you lived in a hobbit house and had a round window that needed? trim, how much trim would be needed to go around a window with a radius of 4.2? feet?

To find out how much trim you would need for the window, you would need to calculate the Circumference.

Step-by-step explanation:

Circumference is the length around a circle and is calculated using the following formula.

In which C is the circumference and r is the radius. Since we already know the radius all we have to do is plug it into the equation and solve for C.

The window has a Circumference of 26.389 feet so you would need that amount of trim to fit the area around the window.

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step-by-step explanation: