7cm 11cm 8cmcan be a triangle

it cannot be a triangle because sidesquare plus sidesqure has to be equal

Dear friend,
yes, it  can be a triangle. As you may be knowing, there are 3 types of triangles, that are:
(1)equilateral triangles= triangles having 3 equal sides.
(2)isosceles triangles= triangles having 2 equal sides.
(3)scalene triangles=triangles not having any no. of equal sides.
in your case , your triangle will be a scalene triangle.
Hope this answer helps!

Yes