Question

How many triangles can be made if the sdie lengths are 3 feet, 4 feet and 12 feet

Answer 1

With those lengths no triangle can be made.

Explanation:

we know that

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

so

In this problem we have

3 feet, 4 feet and 12 feet

Apply the Triangle Inequality Theorem

1) 3+4 > 12

7 > 12 -----> is not true

therefore

With those lengths no triangle can be made.