How many triangles can be constructed with three sides measuring 11 meters 16meters and 26 meters

One

Step-by-step explanation:

The most triangles you can make from three given sides is one.

However, you may not be able to make any.

To form a triangle, the sum of the two smaller sides must be greater than the longest side.

16 + 11 > 26, so you can form one triangle: an obtuse scalene triangle.