Trigonometry: With reference to the length of the face, divide the length of the face into three equal parts: from the forehead hairline to the brow bone, from the brow bone to the bottom of the nose, and from the bottom of the nose to the chin, each accounting for 1/3 of the face length.
Five eyes: refers to the width ratio of the face, which divides the width of the face into five equal parts by the length of the eyes. From the left to the right, it is the width of five eyes, the distance between two eyes is one eye, and the distance from the outside of two eyes to both sides is one eye, each accounting for 1/5.
Face shapes can be roughly divided into seven types: ellipse, circle, square, triangle, inverted triangle, diamond and rectangle.
The characteristics of the ellipse:
Goose egg face is the standard face of contemporary female beauty. The forehead and chin are pointed and round, and the cheeks are fully curved, with the length-width ratio of 4: 3.
Features of a round face:
The forehead, cheekbones, chin and mandible rotate slowly in an arc shape, and the facial muscles are full and the fat layer is thick, and the aspect ratio of the face is less than 4: 3.
Features of a square face:
The upper frontal angle and maxilla are wide, the angle turns obviously, and the face is square, which makes women lack the feminine feeling of women.
Features of a long face:
Face and cheeks are thin, facial muscles are not full enough, and the third hospital is too long, which is greater than the facial ratio of 4: 3. This face makes people look lifeless and feel depressed.
Characteristics of regular triangular surface:
The two sides of the forehead are too narrow, the lower part of the forehead is wide, the angle turns obviously, and the mandible is parallel to the lower part of the forehead, making the lower part of the face wide and flat. This face has a feeling of falling.
Characteristics of an inverted triangle:
The upper forehead is wide on both sides, the lower frontal bone is depressed and the mandible is prominent. This kind of face makes people look too thin and lack of richness.
Characteristics of diamond-shaped face:
The frontal bone is narrow on both sides, the cheekbones are wide, the cheekbones are prominent, the mandible is depressed, and the chin is pointed and long.