To find the circumference and area of a circle, we use two important formulas:
- Circumference: C = 2 × π × r
- Area: A = π × r²
Where C is the circumference, A is the area, r is the radius, and π (pi) is approximately 3.14.
Given a radius (r) of 4 meters, we can calculate both the circumference and the area.
Circumference Calculation:
Using the circumference formula:
C = 2 × π × 4
C ≈ 2 × 3.14 × 4
C ≈ 25.12 meters
Area Calculation:
Now, we can find the area using the area formula:
A = π × (4)²
A ≈ 3.14 × 16
A ≈ 50.24 square meters
Therefore, for a circle with a radius of 4 meters, the circumference is approximately 25.12 meters and the area is approximately 50.24 square meters.