Question

Two sides of a triangle measure 3 inches and 9 inches. which inequality represents all the possible lengths of the third side of the triangle, x?

Answer 1

Well, there must be always a property followed in this case

that is sum of two sides will always be greater than third

so, 3, 9 , 7  or 3,9,8  or 3,9,9 or 3,9,10  or 3,9,11 

hope it helped