M06, 172

Arithmetic Grade Six

To find the area of a circle use the following formula:


	AREA = PI * r²

In English this formula reads: "The area of a circle equals PI multiplied by the radius squared."

Here's an example:


  Find the area of the following circle:

      

  AREA = PI * 24² = 3.14 * 576 = 1808.64 square units

Here's another example:


  Find the area of the following circle:

      

  AREA = PI * 16² = 3.14 * 256 = 803.84 square units