RE:
how can i apply the pythagorean theorem in scalene triangle???
my teacher gave me an assignment it took hours but i still can't get the answer…

Okay, so a scalene triangle is a triangle that has a different length for every edge. The only way that you can use pythagoras theom is if the edges are aranged in such a way that one of the angles in the triangle is a right angle (90 degress).

So the edges either side of the right angle are sides a and sides b, and the longest edge (opposite the right angle) is side c.

Apply the theorm. a squared + b squared = c squared.

Hope that helps.

*In geometry, an altitude of a triangle is a straight line through a vertex and perpendicular to (i.e. forming a right angle with) the opposite side or an extension of the opposite side. The intersection between the (extended) side and the altitude is called the foot of the altitude. This opposite side is called the base of the altitude. The length of the altitude is the distance between the base and the vertex.