Răspuns :
L=114 cm
l=L-40= 114-40=74 cm
P dreptunghi = 2(L+l) =2(114+74)=2×188=376 cm
P benar =4×P dreptunghi =4×376=1504 cm
l=L-40= 114-40=74 cm
P dreptunghi = 2(L+l) =2(114+74)=2×188=376 cm
P benar =4×P dreptunghi =4×376=1504 cm
L [] = 114 cm
l [] = 114 - 40 = 74 cm
P [] = 2(114+74) = 2×188 = 376 cm
P banner = 376 × 4 = 1504 cm
l [] = 114 - 40 = 74 cm
P [] = 2(114+74) = 2×188 = 376 cm
P banner = 376 × 4 = 1504 cm