Why we can't construct a triangle of given side 5 cm 5 cm and 10 cm

It is not possible to construct or make a triangle here because of the condition that :- The sum of opposite sides of a triangle should be greater than the corresponding third side here in this case the sides of triangle are 5,5and 10 so if we follow the condition then :- 5+5=10 and the third side is also 10 so it is not possible to make or construct a triangle in this case