Calculate the perimeter of this shape.
12 cm
18 cm

In this special case we know that and  and for this case we can add all the values 12+18 +12+18=60 and that represent the perimeter  

Step-by-step explanation:

For this case we know that the perimeter is given by:

In this special case we know that and  and for this case we can add all the values 12+18 +12+18=60 and that represent the perimeter  

yes

step-by-step explanation:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!