Final answer:
To find the area of a circle, use the formula A = πr². To find the outer perimeter, use the formula P = 2πr.
Step-by-step explanation:
To find the area of a circle, you can use the formula A = πr², where π is approximately 3.14 and r is the radius of the circle. The area is given in square units, such as square meters or square feet. To find the outer perimeter, you can use the formula P = 2πr, where P is the perimeter and r is the radius of the circle.
For example, if the radius of a circle is 2 meters, the area would be A = 3.14 * 2² = 12.56 square meters. The outer perimeter would be P = 2 * 3.14 * 2 = 12.56 meters.