Answer:
A. 40
Explanation:
180(Whole)
50(Angle 1)
90(Right Angle)
180 - 50 = 130
130 - 90 = 40
Your answer is the first option, the missing angle is 40.
Hope this helped! Have a good day!
All angles in triangle add to 180
The square is a 90* because its a right triangle
50 + 90 + x = 180
Simplify and solve
140 + x = 180
x = 180 - 140 = 40
unknown angle is 40
Hope this helps,
Jeron
:- )
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