what is the area ofa circle if the diamter is 20
Please see the last post.
π/4*(d)^2 =314.15
To find the area of a circle, we can use the formula:
Area = π * (radius)^2
Since we know the diameter of the circle, we can find the radius using the formula:
radius = diameter / 2
Let's first calculate the radius:
radius = 20 / 2
radius = 10
Now that we have the radius, we can find the area using:
Area = π * (10)^2
Using the value of π as approximately 3.14, we can calculate the area:
Area = 3.14 * (10)^2
Area = 3.14 * 100
Area = 314
Therefore, the area of a circle with a diameter of 20 is 314 square units.