Question

The circumference of a circle is 7(pie)cm. What is the area, in square centimeters?

Express your answer in terms of TT(pie).

Answer 1

Let’s begin by writing our area formula for pie : A=R^2.
Let’s now divide our circumference by 2, because our radius is half of our diameter.
7 divided by 2 is 3.5.
Now, let’s plug in our formula. A= 3.5^2
3.5 x 3.5 = 12.25
Add your pie symbol and 12.25cm pie is your answer.