Posted by Need Help NOW!!! on .
Using the same formula and the accompanying figure, deduce a formula for the altitude, h, of an equilateral triangle in terms of its side, c.
really need help don't know what it means by "accompanying figure" because there's nothing "accompanying" it!! :/
thank you so much!

Algebra 1 
Need Help NOW!!!,
....Sorry, the formula is c squared = a squared + b squared

Algebra 1 (?) 
PsyDAG,
If you know the area of the equilateral triangle,
Area = 1/2 ch
Therefore h = (2c)area
Do you know the area?
If it is a right triangle, you have the Pythagorean Theorem.
a^2 + b^2 = c^2, where c is the hypotenuse.
However, there is no way we can find the "accompanying figure."