Since angle BCD and angle BED are vertical angles (angles that share a common vertex and are formed by two intersecting lines), they are congruent.
Therefore, m∠BED = m∠BCD = 78 degrees.
In circle C with m, angle, B, C, D, equals, 78, degreesm∠BCD=78
∘
, find the m, angle, B, E, Dm∠BED.
1 answer