That would be a Complementary Angle.
An angle is formed where two lines meet. Parallel lines do not meet. Therefore they do not form an angle. So there is no angle to have a name. So no name.
They are called perpendicular.
When two lines meet to form a corner, it is called an "angle." The point where the two lines intersect is known as the "vertex" of the angle.
An angle greater than 90 degree is an obtuse angle.
complete angle
An angle is formed where two lines meet. Parallel lines do not meet. Therefore they do not form an angle. So there is no angle to have a name. So no name.
That's the "vertex" of the angle.
They are called perpendicular.
Oh honey, that's an easy one. Another name for a right angle DEF is a 90-degree angle. It's like the perfect L shape, straight up and down, no funny business. So, go ahead and call it a 90-degree angle or a right angle, whatever floats your boat.
An angle greater than 90 degree is an obtuse angle.
An acute angle
complete angle
A right angle
A right angle
A right angle
The name of an angle that measures exactly 90 degrees is called a right angle. In geometry, a right angle is formed when two lines or line segments meet at a 90-degree angle, creating a perfect L-shape. Right angles are commonly seen in shapes such as squares, rectangles, and other geometric figures. The symbol for a right angle is a small square placed in the corner where the angle is formed.
if the two line intersect at 90 degree then these are called perpendicular lines