Answer:
Step-by-step explanation:
1. From the given figure, the measure of ∠ABC=145° and ∠ABD=35°.
2. Since, from the figure, it can be seen that the measure of ∠a=90°, thus a=90°.
Now, a+b+59°=180°(straight line property)
⇒90°+b+59°=180°
⇒b+149°=180°
⇒b=31°
Since, from the figure, c and 59° forms the linear pair, thus
c+59°=180°
⇒c=121°
Also, c+d=180°(Straight line property)
⇒121°+d=180°
⇒d=59°
