Respuesta :

You can use the inscribed angle property that: AZB = 1/2(AOB),

Now AOB is easy to find because it's the same as the arc length angle:

8x + 46 = 7x + 59, from where x = 13, and AOB = 150 degrees,

Then AZB = 1/2(150)= 75 degrees.

The last one