Obliczenia do kolejnych kolumn: 

$6cm\cdot 3cm=18c{m}^2$  

$2\cdot \left(6cm+3cm\right)=2\cdot 9cm=18cm$  

 

$2m\cdot 14m=28m^2$  

$2\cdot \left(2m+14m\right)=2\cdot 16m=32m$  

 

$\left(28dm-9dm-9dm\right):2=10dm:2=5dm$  

$9dm\cdot 5dm=45d{m}^2$  

 

$32m{m}^2:4mm=8mm$  

$2\cdot \left(8mm+4mm\right)=2\cdot 12mm=24mm$  

 

$5m=50dm$  

$\left(114dm-50dm-50dm\right):2=14dm:2=7dm$  

$50dm\cdot 7dm=350d{m}^2$  

 

 

a - bok prostokąta	$6cm$	$2m$	$9dm$	$8mm$	$5m=50dm$
b - bok prostokąta	$3cm$	$14m$	$5dm$	$4mm$	$7dm$
Obwód	$18cm$	$32m$	$28dm$	$24mm$	$114dm$
Pole	$18c{m}^2$	$28m^2$	$45d{m}^2$	$32m{m}^2$	$350d{m}^2$