Question

Your classmate is unsure about how to use side lengths

to determine the type of triangle. How would you explain
this to your classmate?

Answer 1

triangle is: if:

right c^2=a^2 +b^2

acute c^2<a^2 +b^2

obtuse c^2>a^2 +b^2

Answer 2

you look at the lengths some triagles have small parallel lines anè or two of them to determine if they are equal or different from one another