Free help with homework

Why join Brainly?

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


Perimeter of a square-a+a+a+a
0 0 0
First, know the length of the sides of the polygon. Then, add them all, and there it is, you have the perimeter.
For circle, we have this formula: 2πr or 2 × π × radius. But it's not called perimeter it was called circumference.
0 0 0
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