Check whether polarradius is less then radius of circle or not and Angle is between startAngle and endAngle or not
if ( Angle >= startAngle && Angle <= endAngle && polarradius < radius ) Console . Write ( " Point ▁ ( { 0 } , ▁ { 1 } ) ▁ exist ▁ in ▁ " + " the ▁ circle ▁ sector " , x , y ) ; else Console . Write ( " Point ▁ ( { 0 } , ▁ { 1 } ) ▁ does ▁ not ▁ " + " exist ▁ in ▁ the ▁ circle ▁ sector " , x , y ) ; }