Find the value of `x' in the given circle with center O.
140
160
200
100
Angle subtended by an arc (AC) at the center ∠ABC is double the angle subtended by it at any point on the circle ∠ADC. ∠ ABC = 3600- 2∠ADC = 1600
Find the mean of the following distribution. Class100−120120−140140−160160−180180−200Frequency10138712