Răspuns :
P1=4l P2=4L
=> 4l/4L=15/10
l/L=3/2
A1=l² A2=L²
=>l²/L²=3²/2²=9/4
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=> 4l/4L=15/10
l/L=3/2
A1=l² A2=L²
=>l²/L²=3²/2²=9/4
::::::::::::::::::::::::::