MathematicsIf chord AOB is diameter of the circle and AC=BC, then which of the following is the measure of ∠ACB?

If chord AOB is diameter of the circle and AC=BC, then which of the following is the measure of ∠ACB?


  1. A
    30°
  2. B
    60°
  3. C
    90°
  4. D
    45°  

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    Solution:

    Consider the given figure,
    Here, AOB is the diameter and AC=BC.
    An angle inscribed in a semicircle is 90o.
    Here, ∠ACB is inscribed in a semicircle.
    Hence, the measure of ∠ACB is 90o. Therefore, option 3 is correct.
     
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