The radius is 7meters.how do you find diameter and circumferance?
D = 2r
D = 2 * 7
C = pi * d
C = 3.14 * 14
To find the diameter and circumference of a circle when given the radius, you can use the following formulas:
1. Diameter: The diameter of a circle is the distance across the circle passing through its center. It is twice the length of the radius.
Formula: Diameter = 2 * Radius
To find the diameter in this case, we can use the given radius of 7 meters:
Diameter = 2 * 7 meters = 14 meters
2. Circumference: The circumference of a circle is the distance around the circle.
Formula: Circumference = 2 * π * Radius
(where π is a mathematical constant, approximately equal to 3.14159)
To find the circumference in this case, we can substitute the radius of 7 meters into the formula:
Circumference = 2 * 3.14159 * 7 meters ≈ 43.9823 meters (rounded to four decimal places)
Therefore, the diameter of the circle is 14 meters, and the circumference is approximately 43.9823 meters.