Question

please need help :(

Answer 1

What's kind of triangle?

Answer 2

any triangle

Answer 3

1.3
The sum of any two sides cannot be lower than the third side.

Answer 4

Theorem Needed to Solve This Problem:

Triangle Inequality Theorem: The triangle inequality theorem states that any side of a triangle is shorter than the sum of the other two sides.
http://www.mathopenref.com/triangleinequality.html