SOLUTION: find the circumference and area of a circle with diameter 6 inches, use 3.14 for pi

Question 387456: find the circumference and area of a circle with diameter 6 inches, use 3.14 for pi
Answer by gwendolyn(128) (Show Source): You can put this solution on YOUR website!
The equation for circumference is:

The equation for area is:

First, we'll find the circumference.
The 'r' in the equation stands for radius. The radius of a circle is half of its diameter, so the circle's radius is half of 6--3 inches.
So, we can substitute 3 in for 'r' and 3.14 in for

Then, we can simply multiply.

Therefore, the circumference of the circle is 18.84
Next, we'll find the circle's area.
Again, we can substitute 3 in for 'r' and 3.14 in for

The, we'll square three and multiply.

Therefore, the circumference is 18.84 and the area is 28.26.
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