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The degree measure of an angle is equal to (60) times its radian measure. What is the angle in radians?

Answer and explanation

Correct answer: No non-zero angle is possible

Direct answer: Option A, no non-zero angle is possible; the only angle is 0 radians. Let the radian measure be x. The conversion rule is degree measure = x(180/pi). The condition says x(180/pi) = 60x. Moving terms gives x(180/pi - 60) = 0. Since 180/pi is about 57.3 and is not 60, the bracket is not zero, so x = 0. Option A is correct. Option B, pi/6, would be 30 degrees, but 60 times pi/6 is about 31.4, not 30. Option C, pi/3, is 60 degrees, but 60(pi/3) is about 62.8. Option D, pi/2, is 90 degrees, not 60(pi/2). Memory cue: always convert radians using 180/pi before comparing.

Related tags

Trigonometric-FunctionsRadian-DegreeConcept-Check

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