Question

Differentiate between radian and steradian?

Answer 1

Answer:

A radian is 180/π degrees, or about 57.296°. A steradian is (180/π)2 square degrees or about 3282.8 square degrees.One radian is the angle made at the center of a circle by an arc whose length is equal to the radius of the circle. Steradian is unit used for measuring solid angles, i.e 3D angles. Degrees measure angles by how far we tilted our heads. Radians measure angles by distance traveled. or angle in radians (theta) is arc length (s) divided by radius (r). A circle has 360 degrees or 2pi radians — going all the way around is 2 * pi * r / r.

Explanation:

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