Odpowiedź:
a) 0,5cm*0,5cm=0,25cm2*3=0,75cm2
1cm*0,5=0,5cm2
1cm*0,5cm=0,5cm/2=0,25cm2
1cm*0,5xm=0,5cm/2=0,25cm2
0,25cm2*2+0,5cm2+0,75cm2=1,75cm2
b) 2cm*2cm=4cm/2=2cm2
c) 4*2=8cm2
0,5cm*1cm= 0,5cm/2=0,25cm2*2=0,5cm2
1cm*1cm=1cm/2=0,5cm2
8cm2+0,5cm2*2=9cm2
d) 2cm+1,5cm=3,5cm*1cm=3,5cm/2=1,75cm2
1cm*0,5cm=0,5cm/2=0,25cm2
1,5cm+1cm=2,5cm*1=2,5cm/2=1,25cm2
1,25cm2+0,25cm2+1,75cm2=3,25cm2
1 kratka = 0,5cm
