Find the area of a circle that has a diameter of 11 inches. Round your answer to the nearest hundredth.

Question

anonymous · Answer

since are = pi times R squared.....diameter= 2r. divide diameter/2.

anonymous · Answer

then follow the formula. Area=Pi time r^2

mathstudent55 · Answer

To find the area of a circle, square the radius and multiply by pi.
The radius is half of the diameter.

Step by step:
1. Divide the diameter by 2. That means 11/2
2. Then multiply the radius by itself. 11/2 * 11/2
3. Then multiply that result by pi, which approximately 3.14.

mackenzie2013 · Answer

so before the formula its 149.12

mathstudent55 · Answer

How did you get that?

mathstudent55 · Answer

To find the radius, do 11/2. What do you get?

mackenzie2013 · Answer

5.5

mathstudent55 · Answer

Good.
You need to square the radius. Squaring means multiply by itself.
What is 5.5 * 5.5 = ?

mackenzie2013 · Answer

30.25

mathstudent55 · Answer

Great.
Now multiply that number by pi. Pi is approximately 3.14.
What is 30.25 * 3.14?

mackenzie2013 · Answer

94.985

mathstudent55 · Answer

Good.
The problem asks to round to the nearest hundredth.

mackenzie2013 · Answer

94.99?

mathstudent55 · Answer

|dw:1405314625042:dw|