Use the fomula a_(n)= a_(1)+ d(n-1)
You forgot the image , here if you want some free points to repost it just go to a point put a bogus answer in one of my questions . That mistake happens to me all the time
Answer:
The answers should be b=44°
Step-by-step explanation:
b=180°–90°–a
b=180°–90°–46°
b=44°
