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If \( \frac{x\pi}{18} \) radians is equal to \(250^\circ\), what is (x)?

Answer and explanation

Correct answer: 25

To convert degrees to radians, multiply by \(\frac{\pi}{180}\): \(250^\circ=250\times\frac{\pi}{180}=\frac{25\pi}{18}\). Hence, \(\frac{x\pi}{18}=\frac{25\pi}{18}\), so \(x=25\). The nearby option 24 is incorrect because it corresponds to \(240^\circ\). Exam tip: remember \(\theta^\circ=\frac{\theta\pi}{180}\) radians.

Related tags

Trigonometric FunctionsAngle ConversionDegrees To RadiansRadian MeasureClass 11 MathematicsAnglesMathematicsClass 12 Mcq

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