Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


steradian is the SI unit of solid angle.It can be defined as the solid angle substended at a center of an unit,sphere by a unit area on its surface.For a general sphere of radius r, any portion on its surface with area A= r^{2}
2 5 2
mark it as the best if u like it
yes. to put it exactly
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts