Pre-Calc + some Geometry

Help /sci/. School starts in about 3 hours and I need to get this shit done. Problem is I was on a vacation and missed how to do any of it.

1.Express the area A of a 30-60-90 triangle as a function of the length h of the hypotenuse.

2. Express the area A of an equilateral triangle as a function of the perimeter P.

then we move to things like this:

18. A car leaves Oak Corners at 11:33 A.M traveling south at 70 km/h. At the same time, another car is 65km west of Oak Corners traveling east at 90km/h.
  A. Express the distance d between the cars as a function of the time t after the first car left oak Corners.
  B. Show that the cars are closest to each other at noon.

30-60-90 triangle refers to it's angle so it's a right triangle
Area = 1/2 base x height
base = h cos(30)
height = h sin(30)

Same thing but break the triangle into 2 30-60-90 triangles, and h is going to be P/3

Make 2 equations for their distances, one in the east-west direction, one in  the north-south direction. I hope to god you can see that their distance are making a triangle, and the total distance is the hypotenuse of that triangle, find it. and then for part b I guess you have to graph it to find the lowest point (since you have no idea what the derivative is yet).

1. Get rope.
2. Tie noose around neck
3. Secure other end of rope to tall height.
4. FUCKYOU