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.
How does one calculate the centroid of an equilateral triangle using integration. I will assume the equilateral triangle of side one with a vertex at the origin. Clearly, the $x$-centroid is $\bar{x} = 1/2$ by symmetry, so we need only find $\bar{y}$. The expression for the centroid of a region $R$ is $$\bar{y} = \frac{\displaystyle\iint_R dA \, y}{\displaystyle\iint_R dA}$$ It's all about picking the bounds of the integral. In this case, you can see that the triangle is bounded by the lines $x=y/\sqrt{3}$ and $x=1-y/\sqrt{3}$.