please help

Question

A triangle which meaures 100 feet on each side find the height

Answer 1

Three equal angles if three equal sides.
They must add to 180
so all are 60 degrees.
half of base = 50
altitude up from there = h
right triangle, 30 60 90
h^2 + 50^2 = 100^2
h^2 = 10,000 - 2,500
= 7,500
h = 10 sqrt (75) = 10 sqrt (25*3) = 50 sqrt 3