What are the points even for on here?

They're for asking your own questions, every time you ask a question on it takes points from your account. It's kind of like a payment.

Every time you answer a question, you automatically get 5 points.

But if the asker puts out a reward of more points, if you have the best answer, you get the points they awarded.

Questions with higher point rewards tend to get answered faster. Hope this helps!

To recv higher ranking. lol

Step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc