The radius is just the line from the center of the circle. The diameter goes all the way through the center. The circumference is the area around the circle. You find the radius by taking the …

The radius is the measurement of the middle point to the edge; it should be the same no matter which direction you measure to. A diameter is just radius x 2 (two radii).

'On the periodic table, atomic radius generally decreases as you move from left to right across a period (due to increasing nuclear charge) and increases as you move down a group (due to …

The circumference of a circle and the area of a circle have one thing in common: the radius. If I were you I'd do it in two steps: - first calculate the radius using the circumference formula, - …

So we could say that our radius of convergence is equal to 1. Another way to think about it, our interval of convergence-- we're going from negative 1 to 1, not including those two boundaries, …

Circle equation is the Pythagorean theorem but instead of a ^2 + b^2 =c^2 it's (x-k)^2+ (y-b)^2=radius^2. To find the radius all you need to do is square root the number after equal sign …

Based on that, let's see if we can figure out what the radius of that same circle is going to be. And I encourage you, and I'll write equals here. And I encourage you to pause the video, and see if …

How do you measure how much a curve actually, you know, curves?

The radius of a sphere is half its diameter. So, to calculate the volume of a sphere given the diameter of the sphere, you can first calculate the radius, then the volume.

What is circumference? Circumference is the distance around the outside of a circle (its perimeter!). Want a review of circle vocabulary terms (like pi, radius, and diameter)? Check out …