Question

Convert the radian measure to degrees. (round to the nearest hundredth when necessary): 7π3 a. 74.3 b. 210 c. 420 d. 0.743

1. Correct option is C. Radian measure of 7π³ = 420 degrees

Firstly, the radian is a unit for measuring the angles that we mainly use in the trigonometry. We use it instead of the degrees. Whereas a full sphere or a circle is of 360 degrees, a full sphere or a circle is just above six radians.
The radian is most usually represents itself by the symbol rad. Its alternative symbol is C.
• The full angle is 2 pie radians and therefore it is 360 degree.
• A right angle is pie/2 radians.
• A straight angle is pie radians.