What is this ?
11/12 = n/13

       11(13)

n =

          12

Step-by-step explanation:

Incomplete problem statement.  Please write:

"Solve 11/12 = n/13."

To do this, rewrite 11/12 = n/13 as:

  11         n

=

  12       13

and then cross multiply.  We get:

12n = 11(13), and so, after dividing both sides by 12, we have

       11(13)

n = , which is the "solution" of 11/12 = n/13

          12

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.