Question

please fast answer ​

Answer 1

Answer:

$\color{black}\boxed{\colorbox{saffron}{Perimeter-4×side}}$

‎ ‎

A) 21.6dm

= 21.6×4

= 86.4dm

‎ ‎

B)9.7m

=9.7×4

= 38.8m

Answer 2

Step-by-step explanation:

perimeter of square is 4a-

where a is side of square

perimeter of first square is

4a

put value

4*21.6=86.4dm

perimeter of square is

4a

put value

4*9.7

=38.8dm

thanks

hope its helpful