Question
how to find the area of a circle with only the radius, very easily
Answers
Answered by
GPT 3.5
To find the area of a circle when only given the radius, you can use a very simple formula:
Area = π * r^2
Where:
- Area represents the area of the circle
- π (pi) is a constant approximately equal to 3.14159
- r is the radius of the circle
To calculate the area, you just need to square the radius and then multiply it by π.
Let's say the radius is 5 units. Using the formula, the area would be:
Area = π * r^2
Area = 3.14159 * 5^2
Area = 3.14159 * 25
Area ≈ 78.54 square units
So, the area of a circle with a radius of 5 units is approximately 78.54 square units.
Area = π * r^2
Where:
- Area represents the area of the circle
- π (pi) is a constant approximately equal to 3.14159
- r is the radius of the circle
To calculate the area, you just need to square the radius and then multiply it by π.
Let's say the radius is 5 units. Using the formula, the area would be:
Area = π * r^2
Area = 3.14159 * 5^2
Area = 3.14159 * 25
Area ≈ 78.54 square units
So, the area of a circle with a radius of 5 units is approximately 78.54 square units.