Find the value of an angle x,y and z from the following figure
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X=55 (vertically opposite angle)
if we let y=a, so z will also equal to a.
the sum of all angles is 360°,so
55+X+y+z=360°
55+55+a+a=360°
110+2a=360°
2a=360°- 110
2a= 250
a=250/2
a= 125
so y and z is 125
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