Symbols are a concise way of giving lengthy instructions related to numbers and logic.

Symbols are a communication tool. Symbols are used to eliminate the need to write long, plain language instructions to describe calculations and other processes.

For example, a single symbol stands for the entire process for addition. The familiar plus sign eliminates the need for a long written explanation of what addition means and how to accomplish it.

The same symbols are used worldwide . . .

The symbols used in mathematics are universal.

The same math symbols are used throughout the civilized world. In most cases each symbol gives the same clear, precise meaning to every reader, regardless of the language they speak.

The most valuable, most frequently used Symbols in mathematics . . .

The most important, most frequently used Relation symbols are listed below.

Relation Symbols - click description

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If two geometric objects have exactly the same shape and the same size , they are congruent .

(If two geometric objects have exactly the same shape, but not the same size, they are similar. Click here to view the Similarity Sign. )

Example 1: ,

Figure "A" is congruent to Figure "B"

congruent
to Figure A Figure B

Figure A Figure B

Figure "A" Figure "B"

Example 2: ,

Figure "C" is congruent to Figure "D"

congruent
to Figure C Figure D

Figure C Figure D

Figure "C" Figure "D"

Example 3: ,

Triangle "ABC" is congruent to Triangle "DEF"

congruent
to A B C D E F

A B C D E F

Triangle "ABC" Triangle "DEF"