Chat with our AI personalities
The radius symbol is R. You could use this in: Radius = πr²
A congruent figure is identical to another figure. Example would be like a circle with the radius of 12 meters, then the congruent figure would have to be a circle with a 12 meter radius.
When you draw a circle in math, and you draw a triangle inside of it, 2 of the lines should be the radius of the circle, and the third (bottom) line that is not the radius is the chord.
radius
Usually a straight line that touches a curve at one point. At the point of contact, the tangent is perpendicular to the radius of curvature.