Need Help NOW!!!

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!! :/...

....Sorry, the formula is c squared = a squared + b squared

2.) 24 3.) 20 4.) 16 5.) 0.5 hope I was a help! :) going through the same class right now, so I hear ya'