The answer depends on what the given angles are! And since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.
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The sum of the angles in a triangle add up to 180. So in this case 180-35-25=120. The missing angle in this problem is 120 degrees.
An angle of 120 degrees is an obtuse angle
When an angle has a measure of 120 degrees, it is an obtuse angle. When an angle is an obtuse angle its measure is between 90 and 180 degrees. That is: 90 degrees < obtuse angle < 180 degrees.
Sum of angles in a quadrilateral is 360° Three angles sum to 80° + 120° + 65° = 265° Therefore the missing fourth angle is 360° - 265° = 95°
An angle of 120 degrees is an obtuse angle because it is greater than 90 but less than 180 degrees.