Will the three segments given below form a triangle? Explain why or why not.
AB=1 INCH
BC=2 INCHES
AC=3 INCHES
To form a proper triangle, the conditions are that the sum of any two sides must be greater than the third side.
You will note that AB+BC=AC, which makes a mal-formed triangle (i.e. where the height = 0, or area = 0).