Could 2.8 cm, 4.0 cm, and 2.8 cm be the side lenghts of a triangle?

Answer:We can have triangle with those sides.Step-by-step explanation:To check if some sides can be side lengths of triangle, every side must be less than sum of other two.a=2.8b=4.0c=2.8So, lets check.a<b+c  2.8<6.8b<a+c 4.0<5.6c<a+b 2.8<6.8We see that it is true. So 2.8;4.0 and 28 could be side lengths of triangle.