Question

what is the basic unit and symbol of solid angle

Answer 1

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the basic unit of solid angle is steradian.

the symbol of solid angle is sr .

Answer 2

Answer:

Hey!

The S.I unit of solid angle is steradian, or square radian (symbol: sr).

It is used in three-dimensional geometry, and is analogous to the radian, which qualifies planar angles.

Hope it will be helpful ✌️