Multiple choice

A chord of a circle is equal to the radius. The angle subtended by the chord at the minor arc of the circle is

  1. 1500

  2. 600

  3. 900

  4. 300
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A Correct answer
Explanation

A chord equal to the radius forms an equilateral triangle with the center. The central angle is 60 degrees. The angle subtended at the major arc is 30 degrees. The angle at the minor arc is 180 - 30 = 150 degrees.

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