The answer will depend on what PARTS! Also, you will not be able to go very far without a good understanding of spherical geometry.
A spherical triangle is not a question or a puzzle that you can solve, or even slove! You need to specify what information you have and what you wish to solve for: angles, lengths of sides, perimeter, area and so on.
If by sperical triangle you mean a triangle on the surface of a sphere, you will need 3 dimensional coordinate geometry. Whether you use polar coordinates or linear coordinates will depend on what you want to "solve".
If it's a right triangle, use pythagorean's theorem (a2+b2=c2) to solve it. = If it's an oblique triangle, use the law of sines or cosines (see related link)
By using the cosine rule in trigonometry the angles of the triangle can be worked out.
If it is a right triangle, you can use the Pythagorean theorem to find the height since it will be on of the sides. If it is an equilateral triangle, you can break it up into two right triangles and use the part above. If it is an oblique triangle, you use the angles and some trigonometry to find it. Since the area is 1/2 b x h, if you are given the area, you can solve for the height.
Area of a triangle = (1/2)(base)(height)
It depends on the infoamtion that you have.
Pythagorean theorum.
You cannot solve for a leg in any triangle without at least one other side.
The disappearances of people that entered the triangle.
You will also need the angles so that you can use the Isosceles Triangle Theorems to solve for the base of isosceles triangle when only two sides are given.
You have to split the oblique line. Ex: Name the oblique line Fz You'd have to split Fz in 2 lines : FzX and FzY(Which are parallel to the other 2 lines) Then you can solve the quesion :)