There are triangular screwdrivers, triangular ball frames, triangle rulers, tripods, triangle irons, etc.

1. Triangular screwdriver

As the name suggests, the head of the triangular screwdriver is a triangle, and the other parts are the same as ordinary screwdrivers.

2. Triangular ball frame

It is a special tool for placing piles of balls for snooker and American sixteen balls. Before kicking off, all the balls are required to be arranged into an equilateral triangle pile and placed neatly at the designated position on the table. Only by using this mold can the specified requirements be met.

3. Set square

Set square, also known as set square, is a commonly used drawing tool. A set square has three angles and three sides, and each set consists of two special right triangles. One is an isosceles right triangle and the other is a special angle right triangle.

4. Tripod

The main function of a tripod is to stabilize the camera to achieve certain photography effects. The most common is to use a tripod for long exposure. If the user wants to take a night scene or a picture with a surging trajectory, the exposure time needs to be increased. At this time, the digital camera cannot shake, so a tripod is needed.

5. Triangle

The triangle, also known as the "triangle bell", is an ancient percussion instrument that is indispensable in wind bands, orchestras, symphony bands and even musical bands. percussion instrument. Performances are often added to the cadenza to enhance the atmosphere.

Baidu Encyclopedia-Triangular Screwdriver

Baidu Encyclopedia-Triangular Ball Frame

Baidu Encyclopedia-Triangle Ruler

Baidu Encyclopedia-Tripod

Baidu Encyclopedia-Triangle