Find the area and the circumference of a circle of radius 4 meters.
Thank you
area = pi r^2 = 16 pi = 50.26548246 m^2 approximately
circumference = 2 pi r = 25.13274123 meters
To find the area and circumference of a circle, we can use the formulas:
1. Area of a circle: A = πr^2
2. Circumference of a circle: C = 2πr
where r is the radius of the circle and π (pi) is a mathematical constant approximately equal to 3.14159.
Given that the radius of the circle is 4 meters, we can follow these steps to find the area and circumference:
1. Area: Substitute the value of the radius (r) into the area formula:
A = π(4^2) = π(16) = 16π ≈ 50.27 square meters
2. Circumference: Substitute the value of the radius (r) into the circumference formula:
C = 2π(4) = 8π ≈ 25.13 meters
Therefore, the area of the circle with a radius of 4 meters is approximately 50.27 square meters, and the circumference is approximately 25.13 meters.