The altitude of an equilateral triangle is 18 inches. What is the length of a side?
2 Answers
The side
Explanation:
The altitude of the triangle
Let us denote the side of the triangle as
The formula for calculating the altitude of an equilateral triangle is :
Altitude
Length of the side of the triangle is
Explanation:
If the length of the side of a triangle is
As the perpendicular from vertex divides base equally, we can find height
Hence
But as height is