Respuesta :

Answer:

a. 5

Step-by-step explanation:

that is an acute angle which is less than 90*, the only answer choice to give u and acute angle is 5

We know that an inscribed angle is half the degrees of it's intercepted arc.

So,  Angle F = 1/2 Arc GE

8x + 10 = 1/2 (12x + 40)

8x + 10 = 6x + 20

2x = 10

x = 5