Question

find the perimeter of square whose side is 18 m 75 cm

Answer 1

perimeter =4×side
=4×18.5
=74

Answer 2

if you want to find perimeter 
then first change the side value in m
 side = 18m 75cm 
          = 18 + 0.75
            = 18.75m
 then after this use formula of perimeter of square
 area = 4 * side 
        =  4 * 18.75
         = 75 m\
you also find the answer in cm if you want .
if you understand the solution then please mark me as a brainliest.