Question

Find the circumference of each circle, leave your answer in terms of pi ℼFirst circle is 11km A) 11pi KmB) 22pi KmC) 18pi KmD) 11pi Kmand second one is 2 ydA) 8pi ydB) 6pi ydC) 12pi ydD) 4pi yd

Answer 1

Given: first circle is 11 km.

Find: circumference of each circle .

Step-by-step explanation: if radius of circle is11 km.

the circumference of the circle is

`\begin{gathered} =2\pi r \\ =2\pi(11) \\ =22\pi km \end{gathered}`

and the second one is 2 yd.

the circumference of the circle is

`\begin{gathered} =2\pi r \\ =2\pi(2) \\ =4yd \end{gathered}`

Final answer: the circumference of the first circle is 22pi and the second one is 4pi yd