Question

The Perimeter of a certain sector of a circle is equal to
half that of the circle of the sector is
65°27'16"
59°17'18"
57'27' 16"
63' 17' 32"​

Answer 1

Answer:

Step-by-step explanation:

Let r be the radius of the circle and θ the number of radians in the angle.

Then rθ+2r=πr or θ=(π−2) radians

or θ=(π−2)×  

π

180

​  

 

or =180−2×5717  

′

44.8  

′′

 

or θ=180−11435  

′

29.6  

′′

=6524  

′

30.4  

′′