If the side length of an equilateral triangle is 5 centimeters, the length of altitude is about 4.33 centimeters.
An equilateral triangle can be defined as a type of triangle or regular polygon that has equal side lengths and all of its interior angles are equal.
Mathematically, the length of altitude of an equilateral triangle is calculated by using this formula:
[tex]L=\frac{\sqrt{3} }{2} a[/tex]
Where:
Given the following data:
Substituting the given parameters into the formula, we have;
[tex]L=\frac{\sqrt{3} }{2} \times 5\\\\L=\frac{5\sqrt{3} }{2}[/tex]
Length = 4.33 centimeters.
Read more on equilateral triangle here: brainly.com/question/11844452