Question

810 А 30° E Given: Circle C. What is the value of angle x? B 99° 69° 132 30°

Answer 1

In this problem you can reflect the small triangle and you will see that the angle D is equal to the angle x, and the angle E is equal to the angle B so we can sum tyhe internal angles of the big triangle to find x so:

$x+81+30=180$

And we solve for x so:

$\begin{gathered} x=180-81-30 \\ x=69 \end{gathered}$

the angles x is equal to 69º