Angle is a common term to hear when studying Geometry and Architecture. The types of angles, according to measure, are:

- acute
- right
- obtuse
- straight
- reflex
- full

There are other types of angles as well, the relationship of two angles. The types of relationships are:

- Corresponding
- Vertical
- Alternate Exterior
- Alternate Interior
- Same-Side Interior
- Same-Side Exterior
- Linear

Vertical Angles are angles opposite each other when two lines or segments cross each other. In Architecture, it is used to ensure that window panes, windows, and doors are proportionate and even.

Alternate Exterior angles are a pair of angles that are on the opposite side of the transversal, but are on the outside. This concept in Architecture is used to ensure symmetry in floor plans, when needed.

Alternate Interior Angles are two angles that are on the opposite sides of the transversal, but on the inside. They usually form a "z" shape. In Architecture, it is used to ensure that two beams are parallel, and in future do not let the structure bend or deform in any form.

Same-Side Interior angles are angles that are on the same side of the transversal and on the inside of two lines. They add up to 180 degrees, making them supplementary. Architects use this to determine if two beams are parallel and will not result in any distractions to the overall design. It is also used to see if the structure is straight and not at any other angle.

Same-Side Exterior Angles are a pair of angles that are on the same side of the transversal, but on the outside of the two lines. They are also supplementary angles. Its purpose in Architecture is to confirm that the walls are indeed straight and not at a different angle.

Linear Pair Angles are two angles that are supplementary and share a common side. They ensure that a side or wall is straight and not any other angle.