Please help me on question a
I would really appreciate it

On a piece of paper graph y < 3x

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle