an L-square, a T-square, or a protractor
A protractor is used to draw a right angle of 90 degrees.
I generally use a pencil and ruler. To construct the right angle to draw it I also use compasses. To measure the right angle to draw it I also use a protractor.
A compass is a geometric tool used to draw circles.
star tool
A protractor is the common tool used in mathematics for measuring and drawing angles.
A protractor is used to draw a right angle of 90 degrees.
A protractor
I generally use a pencil and ruler. To construct the right angle to draw it I also use compasses. To measure the right angle to draw it I also use a protractor.
A compass is a geometric tool used to draw circles.
It is a protractor that measures angles.
star tool
A protractor is the common tool used in mathematics for measuring and drawing angles.
Circle Tool.
A protractor
A tool used to measure angles.
A tri square is a carpenter's tool that is used to check and mark right angles during construction work.
A right angle is an efficient urban design tool because it is very powerful. Think of it as badminton. There are many right angles on a badminton racket, and if you bend them the racket will weaken. Right angles are also used in houses to keep them stable, and prevent them from collapsing. Hope I answered your question EFFICIENTLY! lol