Răspuns :
a) P = 4 * 12 = 48 cm
A = 12 * 12 = 144 cm²
b) P = 4 * 20 = 80 cm
A = 20 * 20 = 4000 cm²
c) P = 4 * 1,4 = 5,6 cm
A = 1,4 * 1,4 = 1,96 cm²
A = 12 * 12 = 144 cm²
b) P = 4 * 20 = 80 cm
A = 20 * 20 = 4000 cm²
c) P = 4 * 1,4 = 5,6 cm
A = 1,4 * 1,4 = 1,96 cm²
a) P=12*4=48
A=12*12=144
b) P=20*4=80
A=20*20=400
c) P=1,4*4=5,6
A=1,4*1,4=1,96
A=12*12=144
b) P=20*4=80
A=20*20=400
c) P=1,4*4=5,6
A=1,4*1,4=1,96