Вопрос:

In the given figure, O is the center of the circle. If arc MN = 46° and arc NK = 112°, find the measure of ∠MKN.

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Ответ:

Insight:

Method: The inscribed angle is half the measure of its intercepted arc.

Step-by-step solution:

  1. Step 1: Identify the intercepted arc for the angle ∠MKN. The inscribed angle ∠MKN intercepts arc MN.
  2. Step 2: The measure of arc MN is given as 46°.
  3. Step 3: Apply the inscribed angle theorem: $$m∠MKN = \frac{1}{2} imes m( ext{arc } MN)$$.
  4. Step 4: Calculate the measure of ∠MKN. $$m∠MKN = \frac{1}{2} imes 46° = 23°$$.

Answer: 23°

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