what is the area of a circle if the diameter is 8"
Pavleen or Betsy -- you don't need to change names with each post.
I'm sure your book shows how to find the area of a circle.
If you can't find it there, Google: area circle.
Area = Pi * r^2
Pi = 3.1416
radius = Diameter/2
Plug in the values and solve.
THANXS
To find the area of a circle, you need to use the formula:
Area = πr²
Since the diameter is given, you can find the radius by dividing the diameter by 2:
Radius = Diameter / 2
In this case, the diameter is 8 inches, so the radius would be:
Radius = 8 inches / 2 = 4 inches
Now, substitute the value of the radius into the formula for the area of a circle:
Area = π * (4 inches)²
The value of π is approximately 3.14159. Squaring the radius gives:
Area = 3.14159 * (4 inches)²
Calculating further:
Area = 3.14159 * 16 square inches
The area of the circle with a diameter of 8 inches is approximately:
Area = 50.26544 square inches
Therefore, the area of the circle is approximately 50.26544 square inches.