What are the types of angles represented in the following figure:

The correct option is (D),

The angle represented in the given figure is an obtuse angle on the roof and a right angle on the side. An obtuse angle is the one in which the angle is larger than $90$ degrees but smaller than $180$ degrees, an obtuse angle is larger than a right angle and smaller than a straight angle. A right angle is the one in which the angle is $90$ degrees. The measure of a right angle is always exactly $90$ degrees.