Resolution method: the internal angle is a concave angle and the external angle is a convex angle. Take a square as an example, the four right angles inside are internal angles, and the four external angles of 27 degrees are external angles.
if there is a big error in the angle of yin and yang on the wall, you can see it at a glance, which will affect the aesthetics of home decoration, and will also lead to unsmooth installation and placement of cabinets and furniture, resulting in a waste of space.
Yin and Yang angles are mostly 9 degrees. When accepting the Yin and Yang angles of the wall, it is required that the Yin and Yang angles should be perpendicular and parallel to the sideline and the main body of the house, and the corners should be straight and square.
expanding data
function:
1. internal angle
1. the concave line on the wall is the internal angle line.
② When the wall and ceiling are made of different materials or colors, an obvious boundary line will be formed. According to different indoor styles, wood line or plaster line can be selected to cover and decorate the boundary line.
second, the external angle
①. The external corner line (also called external corner line closing strip or external corner strip) protrudes from the wall surface, which is a decorative line used for 9-degree convex corner treatment of ceramic tiles. It is made of PVC, aluminum alloy, stainless steel, etc.)
②. The external corner line is a common technological means in the decoration process, which is to deal with the problem of edge closing of the corner joints of the external wall.
③. Generally, the traditional practice is to treat two bricks with a 9-degree angle with a 45-degree angle at the external angle line for joint treatment. Pay attention to joint filling with a joint filler (it is easily affected by construction technology, such as breakage or cracking if it is not handled properly. )
Baidu Encyclopedia-Yin and Yang Corner