Răspuns :
A) Apatrat= 12,5^2=156,25 hm2
P=12,5 x 4=50,0=50 hm
B) L=18,72 m
l=18,72:3=6,24 m
P=?
A=?
-----------------------)---
A dreptunghi= Lxl= 18,72 x 6,24 m
116,8128 m2
Pdreptunghi= 2l+2L= 2x18,72 + 2x6,24
37,44+12,48
49,92 m
P=12,5 x 4=50,0=50 hm
B) L=18,72 m
l=18,72:3=6,24 m
P=?
A=?
-----------------------)---
A dreptunghi= Lxl= 18,72 x 6,24 m
116,8128 m2
Pdreptunghi= 2l+2L= 2x18,72 + 2x6,24
37,44+12,48
49,92 m
Aria patratului=l^2
Perimetrul patratului:l*4
-------------------------------------------------------------
[tex]Aria=12,5hm*12,5hm\\ =\ \textgreater \ Aria=156,25hm\\ ------------\\ Perimetru=12,5*4\\ =\ \textgreater \ Perimetrul=50hm[/tex]
------------------------------------------------------------
Aria dreptunghiului:L*l
Perimetrul dreptungiului:L*2+l*2
-----------------------------------------------------------
Cat este latimea dreptunghiului?
18,72:3=6,24m
-----------------------------------------------------------
[tex]Aria=6,24*18,72\\ =\ \textgreater \ Aria=116,8128m\\ Perimetrul=6,24*2+18,72*2\\ =\ \textgreater \ Perimetrul=12,48+37,44\\ =\ \textgreater \ Perimetrul=49,92m[/tex]
Perimetrul patratului:l*4
-------------------------------------------------------------
[tex]Aria=12,5hm*12,5hm\\ =\ \textgreater \ Aria=156,25hm\\ ------------\\ Perimetru=12,5*4\\ =\ \textgreater \ Perimetrul=50hm[/tex]
------------------------------------------------------------
Aria dreptunghiului:L*l
Perimetrul dreptungiului:L*2+l*2
-----------------------------------------------------------
Cat este latimea dreptunghiului?
18,72:3=6,24m
-----------------------------------------------------------
[tex]Aria=6,24*18,72\\ =\ \textgreater \ Aria=116,8128m\\ Perimetrul=6,24*2+18,72*2\\ =\ \textgreater \ Perimetrul=12,48+37,44\\ =\ \textgreater \ Perimetrul=49,92m[/tex]