Find the area of: A square with radius 9. (Please explain how you found it! Thanks!)
use the formula of pie r squared
3.14(9)^2 = ?
To find the area of a square, you need the length of one side. However, the concept of a "radius" is typically associated with circles, not squares. Squares have sides, while circles have radii.
If you meant to find the area of a square with a side length of 9, then the process is as follows:
1. Recall that the formula for finding the area of a square is A = s^2, where A represents the area and s represents the side length.
2. Substitute the given side length into the formula: A = 9^2.
3. Simplify the equation: A = 81.
Therefore, the area of the square with a side length of 9 is 81 square units.
To find the area of a square, you need to know the length of one side. However, the concept of a "radius" applies to circles, not squares. A square is a four-sided polygon with all sides equal in length and all angles equaling 90 degrees.
If we assume that you actually mean the side length of the square is 9, then we can calculate the area of the square.
The formula to find the area of a square is: Area = side length * side length.
In this case, the side length is 9, so we can substitute that value into the formula:
Area = 9 * 9 = 81 square units.
Therefore, the area of a square with a side length of 9 is 81 square units.
It would help if you proofread your questions before you posted them.
A square doesn't have a radius.
However, if you meant circle, freda's answer is correct.