Solve for an angle in right triangles

After learning the relevant knowledge points of right triangles, if we encounter geometric problems in the future, we can construct right triangles with the help of the problem conditions, solve the problem by using the Pythagorean theorem and the proportional relationship of each side of the right triangles with 30 ° and 45 ° angles. Next, we will see how to solve the problem through two examples! The study of Pythagorean theorem is based on mastering the properties of general triangles, right triangles and congruence of triangles, which is an extension of the properties of right triangles. This lesson is mainly about the exploration of Pythagorean theorem and the proof of Pythagorean theorem. There are many ways to prove the Pythagorean theorem. This lesson introduces the equal product method. Through the teaching of this lesson, students are guided to find problems from different angles and solve problems with diversified strategies, so as to improve their ability to analyze and solve problems. In fact, it is very easy to understand finite element from the perspective of mathematics. A classic example is to solve Poisson's equation using the finite element method. Students who have seen this example must have some experience. But the problem comes again. If we solve the more complicated mechanical problems from this angle, it will be more difficult, especially the elastic mechanical problems. Therefore, the main purpose of this paper is to apply the finite element method to solve the elasticity problems from the perspective of partial differential equations. Role 1: take the drop height and drop angle as design variables to study the impact of drop height and angle on product performance. Function 2: only exporting solver files without solving can generate drop analysis models with different drop angles in a few minutes, saving time for manually adjusting parameters related to drop angles. Applicable condition: only applicable to drop condition Even if we use the turntable to create inclined walls (or structures connected at a certain angle, as shown in the following figure), we are essentially creating right triangles that satisfy the Pythagorean theorem. The sides of this triangle intersect with the axis of rotation (the center point of the top plate) on the turntable. The Pythagorean theorem triplet used in this example is (6,8,10). The third question examined the existence of right triangles, which can be solved by a line triangular model. This model appeared more frequently in the previous the first mock examination. This time, for the first time, several questions were tested in the the second mock examination paper. The plane of the two guide rails of the inclined bed CNC lathe intersects with the ground plane to form a slope, with an angle of 30 °, 45 °, 60 ° and 75 °. The bed of the inclined bed CNC lathe is a right triangle. The plane of the two guide rails of the flat bed CNC lathe is parallel to the ground plane. From the side of the machine tool, the bed of a flat bed CNC lathe is square. It is obvious that under the same guide rail width, the x-direction carriage of the inclined bed is longer than that of the flat bed. The practical significance of application in the lathe is that more tool bits can be arranged. There are several aspects of comparison between the NC lathe with inclined bed and the NC lathe with flat bed. The two guide rails of the flat CNC lathe are parallel to the ground plane. The planes of the two guide rails intersect with the plane of the ground to form a slope. The angles are 30 °, 45 °, 60 ° and 75 °. From the side of the machine tool, the flat bed CNC lathe bed is square, and the oblique bed CNC lathe bed is right triangle. Obviously, under the same guide rail width, the x-direction carriage of the inclined bed is longer than the flat bed. The practical significance of application in lathe is that more tool positions can be arranged