trustmyloves
trustmyloves trustmyloves
  • 22-06-2021
  • Mathematics
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in circle O, the measure of ABC is 68. what is the measure of AC?

in circle O the measure of ABC is 68 what is the measure of AC class=

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heavenly2711
heavenly2711 heavenly2711
  • 22-06-2021
Answer:
A.
Step-by-step explanation:
We have been given a diagram. We are asked to find the measure of angle ABC.
First of all, we will find measure of major arc AC by subtracting 146 from 360 degrees.


Now, we will use tangent-tangent angle theorem to solve for ABC.
Tangent-Tangent angle theorem states that angle formed by two tangents outside a circle is half the difference of intercepted arcs.



Therefore, the measure of angle ABC is 34 degrees and option A is the correct choice.
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