Need
20 points and explain if you can.

x = 12 or A

Step-by-step explanation:

Tangents from an exterior point to the circumference of a circle are equal

Since one of the tangents = 17, the other one must as well

x + 5 = 17            Subtract 5 from both sides.

x + 5-5 = 17-5

x = 12

The answer is A

step-by-step explanation:

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees