Answer:
Option C. 119°
Explanation:
In the given triangle BCD, ∠DBC = 61° and ∠BDC = 48° are given.
We have to calculate the measure of ∠ ABD.
Since ∠ABD + ∠DBC = 180° [ supplementary angles ]
Therefore ∠ABD + 61° = 180°
∠ABD = 180° - 61°
∠ABD = 119°
We should not get confused with the measures of other angles given.
Option C. 119° is the measure of ∠ ABD