First watch the demonstration.[br]Then you can change the lengths of the triangle with the sliders a, b and c. Look whats happening and answer the [br]following questions:[br][br]What happens, when[br]- the sum of 1 pair of sides exactly equals the measure of a 3rd side?[br]- the sum of 1 pair of sides is less than the measure of a 3rd side?[br]- the sum of 1 pair of sides is more than the measure of a 3rd side?