Angles in a Circle
Definition:
An exterior angle of a circle is an angle whose vertex is outside a circle and the sides of the angle are secants or tangents of the circle.
We are given a circle with two angles a and b subtended by an external angle x.
The value of x can be calculated as follows:
[tex]x=\frac{b-a}{2}=\frac{95-25}{2}=\frac{70}{2}=35[/tex]
Answer: first choice 35°
