Answer:
The diameter of a circle with an area of 240.25 square millimeters is approximately:
Explanation:
The area of a circle is usually calculated using the formula:
- Area of a circle = PI * radius of the circle ^ 2
You must remember that the radius is exactly half the radius, so you must clear the radius of the equation and finally multiply it by 2:
Solving for the radius of the formula gives:
- Circle radius = square root (Area of circle / PI)
When replacing with the provided data, you get:
- Circle radius = square root (240.25 mm ^ 2 / PI)
- Circle radius = 8.7449
As you remember, the radius must be multiplied by 2 to obtain the diameter, therefore:
- Circle diameter = 8.7449 * 2
- Circle diameter = 17.4898 about 17.49