Q3 of 45 Page 59

Find the value of x in each of the following diagrams:

Given: COD = 90°, COB = x and BOD = x

As we know, sum of all angles around a point is 360°.


COD + COB + BOD = 360°


90° + x + x = 360°


2x = 360° - 90°


2x = 270°


x = 135°


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