COMPLETELY LOST :(

[slipperyfuzzers4]

The angle of elevation to the top of the Egyptian pyramid Cheops is 36.4 degrees measured from a point 350 feet from the base of the pyramid. The angle of elevation of a face of the pyramid is 51.9 degrees. Find the height of Cheops.

Apparently we learned this in classs but i was gone that day.
So i have absolutely no idea where to even start on this. D:
If you can help me, you'll be my personal hero!

 

[royhaas]

Draw a picture and use the definition of trig functions.

 

[galactus]

Here is a half-a**ed diagram. Set up two equations with two unknowns and solve for y, the height of the Pyramid, using tan or cot.

There are various ways to go about it.