# geometry

posted by
**adeny** on
.

Two chords that intersect within a circle form an angle whose measure is 55°. If this angle’s arc is 100°, what is the measure of the arc of its vertical angle?

posted by
**adeny** on
.

Two chords that intersect within a circle form an angle whose measure is 55°. If this angle’s arc is 100°, what is the measure of the arc of its vertical angle?