Question

HELP PLEASE

options:
A) 80
B)180
C)40
D)90

Answer 1

D

Explanation:

Answer 2

I got u fam d 90 degrees

Explanation:

First the 40 degrees is given. Then with transversal it goes on the opposite side so a1 would also be 40 degrees that makes b1 50. We know a triangle has to have 180 degrees so we subtract 90 from 180. 180- 90= 90. There I got u.