CN202911384U - Frequently-used angle set square - Google Patents

Abstract

The utility model relates to a frequently-used angle set square. On a set square in the shape of an isosceles right triangle, a 30-degree angle line is marked on the right angle, and then the frequently-used angle set square is formed. The frequently-used angle set square is multipurpose. When the frequently-used angle set square is used, except for the 45-degree angle and the 90-degree angle, a triangle of a frequently-used angle can also be conveniently marked.

Description

Angle commonly used set square

Technical field

The utility model relates to a kind of angle commonly used set square.

Background technology

Teacher usually needs to take two set squares to the classroom in the class, and is very inconvenient.

Summary of the invention

The utility model is to solve the problem that a set square just can accurately mark angle commonly used.

On the set square of isosceles right triangle, mark the angle line of one 30 degree on the right angle, just formed the set square at angle commonly used.

The utility model one-object-many-purposes.When using angle commonly used set square, except miter angle, an angle of 90 degrees, can also mark easily the triangle at angle commonly used.

Description of drawings

Fig. 1 is whole structure figure.

Among Fig. 1, the 1st, the scale on the set square; 2 is angles of 90 degree; 3 is angles of 60 degree; 4 is angles of 30 degree; 5 is 75 degree angles; 6 is 105 degree angles; The 7th, miter angle.

The specific embodiment

On the set square of isosceles right triangle, mark the angle line of one 30 degree on the right angle, just formed the set square at angle commonly used.

Claims (1)

1. the utility model relates to a kind of angle commonly used set square, it is characterized in that: on the set square of isosceles right triangle, mark the angle line of one 30 degree on the right angle, just formed the set square at angle commonly used.

Images