SOLUTION: PLease help me solve this it doesnt show how to in my notes. : {{{m<AOB = 108(degrees) and r=10(square roots of 2) }}} I need to know how to find the Arc Length

Algebra ->  Circles -> SOLUTION: PLease help me solve this it doesnt show how to in my notes. : {{{m<AOB = 108(degrees) and r=10(square roots of 2) }}} I need to know how to find the Arc Length       Log On


   

Question 306301: PLease help me solve this it doesnt show how to in my notes.
: m%3CAOB+=+108%28degrees%29+and+r=10%28square+roots+of+2%29+
I need to know how to find the Arc Length
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Make a ratio.
360 degrees gives an arc length of 2%2Api%2AR
108%2F360=L%2F%282%2Api%2AR%29
L=2%2Api%2AR%2A%283%2F10%29
L=pi%2A10%2Asqrt%282%29%2A%283%2F5%29
L=6sqrt%282%29%2Api