Question

In the diagram, m∠1 + m∠2 = 180°. Find the measure of ∠3 if the measure of ∠2 = 121°

Answer 1

Answer:

m∠BCA  +  m∠BCD   =   180

m∠BCA   =   180  -  m∠BCD

m∠BCA   =   180  -  (27x -