Question

- How can I effectively prove theorems involving lines, angles, triangles and parallelograms?

Answer 1

Answer:

It might depend on theorem.

Step-by-step explanation:

Sometimes you should make a value possibly important to the theorem a variable. So if the theorem says something like the inner angle of something is always twice the outer angle of another shape, try making the inner angle x and then seeing if you get 2x for the other, since it means that, regardless of what x equals, the other angle is twice it.