What is a tri square? How is it used?

Question

I know it has something to do with construction because my class is in construction. I need to know what it is used for and how to use it.

Answer 1

No silverbirch, it isn't shaped like a T. A T square is used with a drawing board.

A tri-square (I'm glad that Mandi M spelled it correctly - most people don't. They call it a try (sic) square) is L shaped.

It has a thick rectangular stock and a slim blade. The blade is fixed at 90 degrees to the stock, and the three surfaces of the stock are mutually at right angles - hence "tri" (it is "square" in all three dimensions.)

It is used for marking right angles on a work-piece or checking the "squareness" of something, i.e. that an angle is a right angle.


The previous answer describes a combination square, not a tri square.

Answer 2

A tri-square is basically a right angled tool with a thicker side and a thin side. The thick side is so that when placed against a board. the thin side will be flush with the board surface. This will permit drawing a line to cut the board, or more likely how square the cut you just made is. There is a 45 degree angle on the thick handle, again to see how the 45 degree cut is to be made, or how well you just cut it. The tri-square is also used by placing the thick side on the board with the thin side overhanging the edge of the board. This allows you to see how square the edge is relative to the surface of the board. Some tri-squares have an adapter that slides onto the thin blade that has its own 90 degree angle. The center of the 90 degree angle is aligned with one side of the thin blade. This permits you to locate the center of a round rod (dowel) by drawing a line along the tri-square blade, rotating the dowel about 90 degrees, and drawing another line. The place where the lines cross is the center of the dowel. Another adapter permits making any angle desired.
See here for a picture.
http://www.sears.com/sr/javasr/product.do?BV_UseBVCookie=Yes&vertical=SEARS&sid=I0033900150001800085&pid=00939569000
and here
http://www.sears.com/sr/javasr/subcat.do?vertical=TOOL&cat=Hand+Tools%2C+Carpentry&subcat=Squares&BV_UseBVCookie=Yes

Answer 3

Try Square

Answer 4

I don't really understand the shape of your triangles, but have you considered assembling them in pairs, to make ten rectangles, and then assembing those to form the borders of a hollow square, like a picture frame, with two fat edges on two opposite sides, and two thin edges along the other two opposite sides? You might be able to achieve an square outside edge, though the hole in the middle would not be square.

Answer 5

It is used to draw a straight line 90 degrees off of one side. Say you wanted to cut a sheet of plywood or sheetrock straight down the center, you could use a tri square or a T-square to draw that line.

Answer 6

A try square is used transfer an unknown angle from one work piece to another. It is usually made of a slotted wood, steel, or aluminum piece with a slotted steel blade hinged by a through bolt and wing nut. Just adjust the two sections to the angle ,and lock with the wing nut.

Answer 7

It is shaped like a big T, and is used to manually draw perfect horizontal or vertical lines, as long as the paper is lined up properly. It is also very good for hitting people with when the teacher isn't looking, and can be an emergency stand in air guitar.

Answer 8

This Website will be a more detailed information about Tri Squares,


http://diasdimensions.net/tutorials/pi/index_swingset.html

It is better than just words.

Answer 9

It's basically a ruler with a precise 90-degree angle, used for checking the squareness of joints, etc. It can also be used to check flatness.

Answer 10

For the best answers, search on this site https://shorturl.im/axtJt

use trig's formulas present on wiki