What is the diagonal length of the suitcase

30

Step-by-step explanation:

if you think about a rectangle cut by its diagonal then yoou can see that its just 2 right triangles and youre looking for the long end

Using pythagorean theorem you put in the numbers

solving gives you

30 = c

is means division by fractions

step-by-step explanation:

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.