Triangular ruler is a common mathematical tool, which is used to measure angles, draw straight lines, draw figures and so on. On the triangular ruler, there is a very obvious angle, which is a right angle. A right angle refers to the angle formed by the intersection of a straight line and another straight line, and its degree is 90 degrees.
Right angles play a very important role in geometry and are the basis of all geometric figures. On the triangle ruler, we can see that two sides of a right angle are two vertical sides, and the included angle between these two sides is a right angle. Right angle is a special angle, its size is fixed and will not change with the size or position of the figure.
In addition to the right angle, there are two angles on the triangle ruler: acute angle and obtuse angle. Acute angle refers to an angle less than 90 degrees, and obtuse angle refers to an angle greater than 90 degrees but less than 180 degrees. On the triangular ruler, different sizes and types of angles can be drawn by moving and rotating.
The right angle on a triangular ruler is not only a mathematical concept, but also widely used in real life. Such as architecture, engineering, machinery and other fields. , it is necessary to use a triangular ruler to measure the angle and draw pictures. At the same time, right angles are also the basic components of many geometric figures, such as squares, rectangles and diamonds.
Besides being the basis of geometry, right angles are also related to many other mathematical concepts. For example, in algebra, right angles can be used to calculate the size of angles; In trigonometric functions, you can use right angles to calculate trigonometric function values and so on.
In a word, the biggest angle on a triangular ruler is a right angle, which is 90 degrees. This angle is composed of two vertical sides, which is one of the most important angles on a triangular ruler. Right angles have important applications in geometry, such as drawing squares, rectangles and other figures.
At the same time, right angles are also related to many other mathematical concepts, such as algebra and trigonometric functions. Therefore, understanding and mastering the nature and characteristics of right angles is one of the foundations of learning mathematics.