Question

In parallelogram ABCD, m∠ABD = 83°, m∠BDA = 34°, and m∠BCD =

Answer 1

notice how ABD is a triangle, so its angles should sum up to 180
using this fact, along with the two other angles inside the triangle, to calculate <A

now, since opposite angles in a parallelogram are equal, m<BCD = m<A