Points #(2 ,9 )# and #(1 ,3 )# are #(3 pi)/4 # radians apart on a circle. What is the shortest arc length between the points?
1 Answer
6.24 unit
Explanation:
It is evident from the above figure that shortest
Now the triangle OAB is isosceles having OA=OB=r (radius of circle)
Oc bisects
AgainAC= BC
Now
Now,
Shortest Arc length of AB = Radius
More easily by properties of triangle
Now
Shortest Arc length of AB = Radius