what is the height of an equal lateral try angel with a length of 19 cm
Draw the triangle. Cut it in half so that you have the perpendicular height in the middle
Now one side of it is a right angled triangle.
The hypotenuse is 19cm
the base is 19/2 = 9.5 cm
now use pythagoras' theory to find the height.
http://www.mathsisfun.com/pythagoras.html
What is the bace and the area? If they are not given then say "there's not enough information to answer the question"
+89 
+37 
