Question

Please help; MEDAL WILL BE GIVEN!!! :j
Find the length of an arc of 40° in a circle with an 8 inch radius.

Answer 1

\[A.) 8 \pi/9 inches\]

Answer 2

\[B.) 16 \pi/9 inches\]

Answer 3

\[C.) 64 \pi/9 inches\]

Answer 4

What is the angle of a circle? It is 360 degrees. 40/360=1/9
So the length of the arc is 1/9 of the whole perimeter of the circle.

Answer 5

Now do you want to solve the question yourself or let me help you?

Answer 6

I want you t help me please :j

Answer 7

All right.

Answer 8

First find the perimeter of the circle. \[2 \times radius=diameter\]; \[diameter \times \pi=perimeter\]
So\[2 \times 8 \times \pi=16\pi\]
Then \[16\pi \times \frac{ 1 }{ 9 }=\frac{ 16 }{ 9 }\pi\]
B is right.

Answer 9

That's what I thought but I wasn't completely sure. Thank you sooo much!!! :j

Answer 10

You are welcome!