Answer:
100⁰
because this is a quadrilateral inscribed in the circle
=> x + 80 = 180
<=> x = 180 - 80 = 100⁰
Step-by-step explanation:
42
39+39 = 78
162 - 78 = 2 lengths =84
84/2 = 42
5.0-2.5=2.5
