That depends on the type of triangle it is but in general the 3 interior angles of any triangle add up to 180 degrees.
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
A triangle with one angle over 90 degrees is an obtuse triangle.
right triangle
40 degrees
A right-angle triangle will have one right-angle (90 degrees).
It has 180 degrees, but one angle of the triangle has to be 90 degrees
40
A Right Triangle is a triangle that has one corner with a 90-degree angle. So a Right Angle is an angle of 90 Degrees or also known as Perpendicular angle.
50
40 degrees
An obtuse angled triangle.
A right triangle is a triangle in which one angle is equal to 90 degrees and the remaing two angles are acute(ie., less than 90 degree). so this triangle is a right angle triangle.