Evaluate f(3) for each of the following:
a. {(1,2), (2,0), (3,1), (4,2)}
b. {(1,2), (2,3), (3,4), (4,5)}
c. {(1,3), (2,5), (3,2), (4,0)}

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: