Răspuns :
pătratul are toate laturile egale.
l= 198 m
P= 4×l=4×198=792 m
dreptunghi :
l=86 cm
L= 275 cm
P = 2×l+2×L=2×86 + 2×275=172+550=722 cm
triunghi :
l=69 m
P= l+l+l= 69+69+69=207 m
P pătrat =l×4=198m×4=792m
Pdreptunghi=2×L+2×l=2×275+2×86=550+172=722m
Ptriunghi=3×l=3×69=207m