SOLUTION: Find the radius of a circular arc of length 12cm that subtends a central angle of radian measure 1.5.

Algebra ->  Trigonometry-basics -> SOLUTION: Find the radius of a circular arc of length 12cm that subtends a central angle of radian measure 1.5.      Log On


   

Question 65198This question is from textbook
: Find the radius of a circular arc of length 12cm that subtends a central angle of radian measure 1.5. This question is from textbook

Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
Arclength=%28Angle%2F2pi%29%2A2pi%28r%5E2%29
the pi in the equation above is multiplied by 2 not a power of 2
Arclength=Angle%28r%5E2%29
12=1.5%28r%5E2%29
8=r%5E2
r=2sqrt%282%29