Q. Which of the following radian measures is equal to 225∘ ?Choose 1 answer:(A) 4π radiansB 2π radians(C) 43π radians(D) 45π radians
Identify formula for conversion: Identify the formula to convert degrees to radians. The formula is radians=degrees×(180∘π).
Convert 225 degrees to radians: Convert 225 degrees into radians using the formula. By substituting 225 degrees into the formula, we get 225∘×(180∘π)=(180225)×π=(45)×π=45π radians.
Match calculated radian measure: Match the calculated radian measure with the given options. The calculated value is (5π/4) radians, which corresponds to option (D).
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