In the diagram of circle P, if m∠XYZ is 72° then the value of x is; 108°
From angles of arcs formed by tangents inside a circle, we can say that;
the angle x formed by the first arc will be a supplementary angle to 72°.
This means that due to the rule of supplementary angles, we can say that;
x + 72° = 180°
x = 180° - 72°
x = 108°
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