Question

The SI unit of plane angle is ……….?​

Answer 1

→That is, because plane angle is expressed as the ratio of two lengths, and solid angle as the ratio of an area and the square of a length, the SI derived unit for plane angle is m/m = 1, and the SI derived unit for solid angle is m2/m2 = 1.

Answer 2

Answer:

The SI unit of plane angle is m/m=1.

Explanation:

Because the plane angle is expressed as the ratio of two lengths.

Hope it helps you