The perimeter is when you add all the sides up. so the formula is L+W+L+W=P. (P = 2W + 2L)
In this case it would be 11+3+11+3= 28 cm
Chat with our AI personalities
20
3 x 9
3 cm
16.4 cm
That will depend on its dimensions of which none have been given but if they are 2 by 9 then its perimeter is 22 cm or if they are 3 by 6 then its perimeter is 18 cm