Question

A circle with a radius of 6 inches is cut into 12 equal pieces, one of which is arc AB. What is the measure of arc AB in inches?

A. 1

B. 2

C. π

D. 2π

E. 3π

***drawing of circle inside.. please explain! thanks! :)

Answer 1

Do you know what is the total length of a circle is?

Answer 2

2πr ?

Answer 3

Yes. then what will be the total length of the circle here?

Answer 4

ohh okay i see now... totally forgot haha

so 2π(6) = 12π divided by 12=π

so the answer would be the length of arc AB is π ?

Answer 5

Yes. You got it correct.

Answer 6

ahh okay awesome, thank you!!