Answer:
16) B. 18
17) A. 5
Explanation:
The Tangent Secant Theorem states that AB*BC=DC^2, so we can plug in the values to say
8x=12^2
8x=144
x=144/8
x=18
To find the segment of intersecting chords, we use the formula AE*EG=FE*ED. Plugging in the values we find
8x=10*4
8x=40
x=40/8
x=5