Question

I need help understand how to do this AND what they are asking. Plz help ASAP! I will give brainliest.

Write the word(s) in the blank that best completes the statement.
The altitude of an equilateral triangle that has a side of 6 inches is __?___.

Answer 1

Draw a height to the triangle.So in one of the triangles , using Pythagoras theorem , (interior angle of a triangle is 60°

sin60°= h/6

h = 6× sin60°

h=6× root3/2

H or altitude = 3 root 3