Question

What’s the answer for #11 @HavannaS? Spent 20 min and clueless, thank you!!!!!!

Answer 1

Angle 2=3, so angle 1=4 because angles ABC & BCD equal 90°. When you add together the angles of a triangle you get 180 and if you could put angle 1 and 4 together it would look like an upward version.



That is the best way I could describe it. Hope that helps.