They are arcs of congruent circles.
Not unless the chords are both diameters.
true
15pi. after you add.
Yes, congruent central angles in a circle have congruent chords. This is because the length of a chord is determined by the angle subtended at the center of the circle; when two central angles are equal, the arcs they subtend are also equal, leading to chords of the same length. Thus, congruent central angles correspond to congruent chords.
They are arcs of congruent circles.
In the same circle, or in congruent circles, two minor arcs are congruent if and only if their corresponding chords are congruent.
Not unless the chords are both diameters.
Only if they belong to congruent circles.
true
Arcs are part of a circumference of a circle cut into pieces by chords, tangents, secants, etc.
It is the measure of half the intercepted arc.
Sometimes
15pi. after you add.
Yes, congruent central angles in a circle have congruent chords. This is because the length of a chord is determined by the angle subtended at the center of the circle; when two central angles are equal, the arcs they subtend are also equal, leading to chords of the same length. Thus, congruent central angles correspond to congruent chords.
If they're in the same circle or in circles of equal radii (radiuses), then yes.
In a circle, the measure of an angle formed by two chords that intersect at a point inside the circle is equal to the average of the measures of the arcs intercepted by the angle. If angle ABC measures 134 degrees, it means that the angle is formed by the intersection of two chords, and the measure of the arcs it intercepts will average to this angle. Thus, angle ABC is 134 degrees.