1.

In the given figure O is the centre of the circle. Show that x + y = z​

Answer»

Step-by-step explanation:

ANGLE y is 360- half of angle z and angle X =DOUBLE half of angle z(by propery of circle that the angle substended by an ARC of A circle at centre is double the angle substended by it at any point on remaining part of the circle)

Therefore, x+y=z



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