Question

Each side of an equilateral triangle measures 30cm. Find the length of an altitude, a , of the triangle?

Answer 1

Answer:

$X=25.98cm$

Step-by-step explanation:

From the question we are told that:  

Length of each side $l=30cm$

Let the triangle be divide by two form a right angle triangle with base angles as $90 \textdegree$(angle of perpendicularity) and $60 \textdegree$ (angle on each vertices of an equilateral triangle)

Generally the equation for the Altitude X is mathematically given by

Trigonometric Rule

$X=30sin60$

$X=15\sqrt{3}$

$X=25.98cm$