The Total solution for NCERT class 6-12
In figure,determine the value of x.
The sum of all the angles around a point O is equal to 360°.
Therefore,
3x + 3x + 150 + x = 3600
7x = 3600 – 1500
7x = 2100
x = 210/7
x = 300
Hence, the value of x is 30°.