Question

A school district is formed by a triangle web side measures 48 km 55 km and 80 km classify the triangle

Answer 1

Classify the triangle?  In other words, state the type of triangle we have here:  right, acute or obtuse.

If the triangle is a right triangle, then 48^2+55^2=80^2 by the Pythagorean Theorem.  Let's check that out:  We get 5329 = 6400, which is false.  So this triangle is not a right triangle.  

For this to be an obtuse triangle, 48+55 would have to be greater than 80.  That's not the case here.  Thus, the triangle is ACUTE.