That they are half the diameter of a circle
Yes, providing that the radii are all in the same circle
true
true
False
Yes, all of the radii in a single circle are congruent.
True providing that they have the same diameters
All the radii of a circle are of equal length. The radius is the distance from the center of the circle to the out edge. Having equal radii is what defines a circle.
True
Yes. All radii of the same circle have the same length.
Yes, all radii of a given circle have the same length. A circle is defined as all the points on a plane that have a specified distance from a given point, called the center. Any segment from the center to the circle is called a radius (plural radii). Thus, by definition, all such segments (all radii) have the same length.
yes
Yes