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2014-05-15T19:40:45+03:00
P=2(L+l)
L=4l
90=2(4l+l)=2*5l=10l=>10l=90=>l=9
L=4l=4*9=36
L=36
2 4 2
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  • Utilizator Brainly
2014-05-15T19:40:54+03:00
P=90
P=L+L+l+l
L=4l

2L+2l=90/:2
L+l=45

4l+l=45
5l=45
l=9

L=4x9
L=36


2 3 2