What two number add up to 18 and multiply to 24

Are you sure it's 18 and not something else?

9+9=18 

and

8+10=18

 18+24= 42

hope this helps have an terrific tuesday

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's