Hi friend!
Firstly, we have to remember that the sum of the interior angles of a triangle will always be 180°. So, we just have to find out how much is left to reach 180°. Here we have 3 angles in each triangle. Homework gives us 2 angles and wants us to discover the third. Just add the 2 angles we have and subtract by 180. Pay attention to letter D: When we have a triangle with that little square in the corner, it means that one of the angles is 90°. Then add 90 + 37 - 180. See:
A) 85
B) 25
C) 46
D) 53
E) 37
F) 46
By the waaaay, if you want a friend to make all your homework for free while you rest and have fun, send me message. Thank you ;D
