a) 1cm*1cm=1cm²
b) 1cm*0,5cm=0,5cm²
c)½*1cm*1cm=0,5cm²
d)0,5cm*0,5cm=0,25cm²
e)½*1cm*1cm=0,5cm²
f)½*1cm*0,5cm=0,25cm²
g)½(3cm+1cm)*1cm=2cm²
h)½(2cm+1cm)*1cm=1,5cm²
i) 0,5cm*0,5cm=0,25cm²
2cm*1cm=2cm²
0,5cm*1cm=0,5cm²
½*1cm*0,5cm=0,25cm²
0,25cm²*3+2cm²+0,5cm²=3,25cm
