The side length of an equilateral triangle whose side length 4.3 centimeter.
Given that,
The side length of an equilateral triangle is 5 centimeters.
We have to determine,
The length of an altitude.
According to the question,
An altitude of a triangle is the perpendicular segment from a vertex of a triangle to the opposite side (or the line containing the opposite side).
The side length of an equilateral triangle is 5 centimeters.
Altitude of Equilateral Triangle is,
[tex]h = \dfrac{\sqrt{3}}{2}a\\\\h = \dfrac{\sqrt{3}}{2}5\\\\h = \dfrac{5\sqrt{3}}{2}\\\\h = 4.33[/tex]
Hence, The side length of an equilateral triangle whose side length 4.3 centimeters.
To know more about Equilateral triangle click the link given below.
https://brainly.com/question/16803837