The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. Side BC is a secant intersecting the circle at point X.

What is the measure of angle ACB?

A. 32°

B. 6°

C. 24°

D. 12°

(will post pic in a sec)

Question

The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. Side BC is a secant intersecting the circle at point X. 

What is the measure of angle ACB?

A. 32°

B. 6°

C. 24°

D. 12° 

(will post pic in a sec)

anonymous · Answer

attachment

amistre64 · Answer

one approach may be

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amistre64 · Answer

b/2 = 64

a/2 = 152/2

amistre64 · Answer

the simplifies to what:  a/2 - b/2