Pls help me I will mark BRAINLIST

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

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4