Question

Please help fast !!
If m/CGB =
78°, then what is m/DGA?

Answer 1

78o

Explanation:

∠CGB is corresponding to ∠1 = 78o

∠DBA is corresponding to ∠3

both ∠1 and ∠3 are vertical angles so they are congruent.

so ∠1 = ∠3 = 78o