1.

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

Answer»

ANSWER:

m∠BCA  +  m∠BCD   =   180

m∠BCA   =   180  -  m∠BCD

m∠BCA   =   180  -  (27X



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