Answer:
75 degrees
Step-by-step explanation:
Let's label the angles:
The one near 115 degrees is A.
The ? is B.
The one near 40 is C.
(All of them are interior.)
To find A:
180 - 115 = 65
A = 65 degrees
To find C (this one's a bit hard to explain):
The cross made by two lines near the 40 degrees makes vertical angles.
So, C = 40 degrees
All angles in a triangle add up to 180 degrees so:
65 + 40 = 105
180 - 105 = 75
So:
Angle B = 75 degrees
Hope this helps!
(please let me know if you need further clarification)
