The area of a circle can be calculated using the formula: A = πr2, where A is the area, π (pi) is a mathematical constant approximately equal to 3.14159, and r is the radius of the circle.
In this case, the radius (r) is given as 4. To find the area, we will substitute the radius into the formula:
- A = π(4)2
- A = π(16)
- A ≈ 3.14159 × 16
- A ≈ 50.26544
Therefore, the area of a circle with a radius of 4 is approximately 50.27 square units. This means that if you were to draw a circle with a radius of 4 units, the space enclosed within that circle would cover about 50.27 square units.