1 radian = _ degrees.
Correct answer: D. 57.3
- A. 360
- B. 180
- C. 100
- D. 57.3
- E. 1.01745
Explanation
Radian is the SI unit of measuring angles. It is the measure of the central angle whose arc length is the same as the radius of the circle.In one circle,2π radians =3601 radian is equal to 180/π degrees, which is approximately 57.3°
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Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
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