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dau 16 puncte si coroana
un teren de sport areL=100msil50supra100xl.calculati perimetrul si suprafata


Răspuns :

l=50/100xL = 1/2xL, rezulta - l=100/2=50metri
P=100x2+50x2=200+100=300metri
A=50x100=5.000metri
P=2L+2I
P=2X100+2X50/100=200+1=201
A=LXI
A=100X50/100=50