Răspuns :
a)P=4l=4*3=12cm
A=l^2=3^2=9 cm^2
b)P=4*3,7=14,8cm
A=3,7^2=13,69 cm^2
c)P=4*6√5=24√5 cm
A=(6√5)^2=36*5=180 cm^2
A=l^2=3^2=9 cm^2
b)P=4*3,7=14,8cm
A=3,7^2=13,69 cm^2
c)P=4*6√5=24√5 cm
A=(6√5)^2=36*5=180 cm^2
a) P= 3×4=12
A=3×3=9
b) P=3,7×4=14,8
A=3,7×3,7=13,69
c) P=6√5×4=24√5
A=6√5×6√5= 36×5=180
A=3×3=9
b) P=3,7×4=14,8
A=3,7×3,7=13,69
c) P=6√5×4=24√5
A=6√5×6√5= 36×5=180