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What is the degree measure of 11π/12 radians?

Answer and explanation

Correct answer: 165°

Use the standard equivalence π radians = 180°. To convert 11π/12 radians to degrees, multiply by 180°/π: (11π/12) × (180°/π). The π factors cancel, leaving 11 × 180°/12 = 11 × 15° = 165°. Therefore option C is correct. The size is also sensible because 11π/12 is less than π but close to π, so its degree measure must be less than 180° but close to it. Option A is 150° and equals 5π/6. Option B is not the exact result of the conversion, while option D is 10° greater than the calculated value. Exact cancellation avoids approximation errors.

Related tags

Trigonometric-FunctionsAnglesRadians-To-DegreesTrigonometric FunctionsMathematicsClass 12 Mcq

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