Instruments used in mathematics and geometry


Parts of Geometry | Components Of Geometry with Examples


A piece of equipment used for drawing circles, consisting of two thin parts joined in the shape of the letter V.


A piece of equipment used for measuring or drawing lines and angles, consisting of two pieces of metal with pointed ends that are joined together at the top.

Plumb line

A piece of string with a metal object fixed to the bottom, used for checking whether a wall is straight or for measuring the depth of water.


An object that is shaped like half a circle and is used for measuring and drawing angles.


An object used for measuring or for drawing straight lines, consisting of a long flat piece of plastic, wood, or metal marked with units of measurement.

Set Square

A flat plastic or metal tool with three straight sides and one right angle, used for drawing lines and measuring angles.

Slide Rule

A simple piece of equipment like a ruler with a piece in the middle that slides along, used for calculating.


A piece of equipment that a surveyor uses for measuring angles.

Roll-n-Draw Ruler

A Multi-use tool ideal for drawing vertical lines, horizontal lines, parallel lines, angles and circles.


A tool in the shape of the letter T that can help you to draw lines that are exactly parallel or in the shape of a square. A T-square is used in making detailed plans for buildings etc.

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