Respuesta :

Disneygirl1
Use this equation: a^2+b^2=c^2. input the two numbers into the first two variables
lukyo
The measure of the third side must be less than the sum of the other two. That property is valid for all triangles.

For this question, call x the measure of the third side. So you must have

x < 4 + 3

x < 7 ft

The only option that satisfies the condition above is

option A) 5 ft.

I hope this helps. =)