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anonymous
 4 years ago
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?
6, 12, 24 or 32 degrees
anonymous
 4 years ago
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? 6, 12, 24 or 32 degrees

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@pfenn1 can you help me please?

pfenn1
 4 years ago
Best ResponseYou've already chosen the best response.0@Kris5, could you show how you got the answer, not just the answer?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sure, <XBA is an inscribed angle. Therefore, it is twice the measure of its intercepted arc. Its intercepted arc is arc XA. So... arc XA= 2m<XBA... arc XA=2(64)...arc XA=128. Now< ACB= 1/2 (BAXA)... <ACB=1/2(152128)...<ACB=1/2(24)...<ACB=12 :)
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