find the value of each variable. for the circle, the dot represents the center.\na = (simplify your answer.)

find the value of each variable. for the circle, the dot represents the center.\na = (simplify your answer.)

find the value of each variable. for the circle, the dot represents the center.\na = (simplify your answer.)

Answer

Explanation:

Step1: Recall property of cyclic quadrilateral

The sum of opposite angles in a cyclic quadrilateral is 180°.

Step2: Find angle (a)

Angle (a) and the 103° - angle are opposite angles in the cyclic quadrilateral. So (a + 103^{\circ}=180^{\circ}). Then (a=180^{\circ}- 103^{\circ}).

Answer:

(77^{\circ})