Barbara and Sherwin want to use the SSS Triangle Congruence Theorem to see if their triangular slices of watermelon are congruent.
They each measure two sides of their slices. Barbara measures sides of lengths 7 inches and 6 inches, while Sherwin measures sides of lengths 8 inches and 5 inches.
Do they need to measure the third sides of their slices to determine whether they are congruent? If so, what must the side lengths be for the slices to be congruent? Explain.