114k views
25 votes
Formular for area of a circle

2 Answers

3 votes

Answer:

  • πr²

Explanation:

The circumference of a circle is given to be 2πr, and its radius to be r.

  • Area = 1/2 x circumference x radius
  • Area = 1/2 x 2πr x r
  • Area = πr²
User Fizzybear
by
3.2k points
6 votes

Answer:

Tr2

Explanation:

pie * radius * radius

User Rodrigocf
by
3.3k points