Question

aflati lungimea laturi patratului ,daca perimetru lui
20cm 12dm 5cm 6mm
3 dm 6 dm 8 cm

Answer 1

P=4l
P=20cm
⇒4l=20⇔l=20:4⇔l=5cm
P=4l
P=12dm
⇒3l=12⇔l=12:3⇔l=4dm
P=4l
P=5cm
⇒4l=5⇔l=5:4⇔l=1,25cm
P=4l
P=6mm
⇒4l=6⇔l=6:4⇔l=1,5mm
P=4l
P=3dm
⇒4l=3⇔l=3:4⇔l=0.75dm
P=4l
P=6 dm
⇒4l=6⇔l=6:4⇔l=1,5dm
P=4l
P=8cm
⇒4l=8⇔l=8:4⇔l=2cm
COROANA ? :) TE ROOG!

Answer 2

 l=20cm:4=5cm ;  l=12dm:4=3dm ;  l=5:4=1,25cm ;  l=6:4=1,5mm ;
 
 l=3:4=0,75dm ;  l=6:4=1,5dm ;  l=8:4=2cm ;