1.
pole: 50*50 = 2500cm2
obwod: 50*4 = 200cm
2.
(40*40) / 2 = 800dm2
3.
4*9,5 = 38
4*2+9,5*2=8 + 19 = 27
4.
(4*2) / 2 = 4j2
5.
0,6dm2 = 60cm2
12cm2 = 1200mm2
