what would be the radius of a circle with a diameter of 8 inches?
diameter = 2 times radius
In other words, it takes 2 radii to make one diameter.
You are given the diameter to be 8 inches.
We have:
8 inches = 2r
We divide both sides of the equation by 2 to find r.
8 inches/2 = r
4 inches = r
Let r = radius.
Then, radius is 4 inches.
Done!
Check this site for information about circles.
http://www.mathgoodies.com/lessons/vol2/circle_area.html
The radius is Half of the Diameter. So you would do 8/2 = 4
r=4
wow 12 yers later
4
To find the radius of a circle, you can use the formula:
radius = diameter / 2.
In this case, the diameter is given as 8 inches. Therefore, to find the radius, you divide the diameter by 2:
radius = 8 inches / 2 = 4 inches.
Hence, the radius of a circle with a diameter of 8 inches is 4 inches.