Number added to a code (such as a bar code or account number) to derive a further number as a means of verifying the accuracy or validity of the code as it is printed or transmitted.
An equilateral triangle has the following properties. 1  Equilateral triangles have three equal side lengths. 2  Equilateral triangles also have three equal angles of 60 degrees. 3  They also have three equal altitudes.  Is the height of an equilateral triangle equal to its side 1  length. The height is equal to side/2 x  â3.
Each of its angles are 60 degrees. If you split an equilateral triangle in half, you will have two right triangles, which you â¦ use the Pythagorean Theorem to solve. You know the base (a), 32cm divided by 2 equaling 16cm (because you split the equilateral triangle in half).