Respuesta :
Answer:
s=21
Step-by-step explanation:
given ,
area=441cm^2
length (l)=s
we know,
or,l^2=441cm^2
or,l=√441cm^2
or,l=21cm
Answer:
s=21
Step-by-step explanation:
given ,
area=441cm^2
length (l)=s
we know,
or,l^2=441cm^2
or,l=√441cm^2
or,l=21cm