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What is the degree measure of 7π/12 radians?

Answer and explanation

Correct answer: 105°

The governing conversion is π radians = 180°. Therefore, to convert a radian measure to degrees, multiply by 180°/π. Thus (7π/12) × (180°/π) = 7 × 15° = 105°. The π cancels, so option C is correct. Another equivalent check is that π/12 radians equals 15°, and seven such portions equal 7 × 15° = 105°. Option A is 10° too small, option B does not result from the conversion factor, and option D is 5° too large. The cancellation of π and multiplication by 180/12 are the essential steps; treating the numerical coefficient 7π/12 as degrees without conversion would be conceptually incorrect.

Related tags

Trigonometric FunctionsAngle ConversionRadiansAnglesMathematicsClass 12 Mcq

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