Find the altitude of an equilateral triangle whose perimeter is 18

3√3 units

Step-by-step explanation:

We are asked to find the altitude of the equilateral triangle whose perimeter is 18 . Firstly let us find the side of the∆.

Now we know that in a equilateral triangle , the altitude of the triangle with side length a is ,

Plug in the value of a that is 6 , we will get ,

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

the square root of what number? if you add that, then someone will probably answer the question.