객관식
How many degrees is radians?
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1. Measuring Angles
Radians
Multiple Choice
Given a central angle of , which of the following is its measure in radians?
A
B
C
D
검증된 단계별 안내1
Recall the formula to convert degrees to radians: \(\text{radians} = \text{degrees} \times \frac{\pi}{180}\).
Substitute the given central angle of 90 degrees into the formula: \(90 \times \frac{\pi}{180}\).
Simplify the fraction \(\frac{90}{180}\) to its lowest terms.
Multiply the simplified fraction by \(\pi\) to express the angle in radians.
Compare the resulting expression with the given options to identify the correct radian measure.
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