Odpowiedź :
zad 1
1 m = 100 cm
100 cm : 4 = 25 cm
25 cm x 25 cm = 625 cm2
zad 2
P = a x h
48 cm2 = a x 8 cm
a = 6 cm
zad 4
12 cm - 8 cm = 4 cm
P = 1/2 x (12 cm + 4 cm) x 4 cm
P = 8 cm x 4 cm = 32 cm2
pozdro :)
1 m = 100 cm
100 cm : 4 = 25 cm
25 cm x 25 cm = 625 cm2
zad 2
P = a x h
48 cm2 = a x 8 cm
a = 6 cm
zad 4
12 cm - 8 cm = 4 cm
P = 1/2 x (12 cm + 4 cm) x 4 cm
P = 8 cm x 4 cm = 32 cm2
pozdro :)