Odpowiedź :
Hej!
P = ½ * (a + b) * h
a = 9 cm
b = 9 cm - 3 cm = 6 cm
h = 8 cm
P = ½ * (9 cm + 6 cm) * 8 cm
P = 4 cm * 15 cm
P = 60 cm²
Pozdrawiam! - Julka
Hej!
P = ½ * (a + b) * h
a = 9 cm
b = 9 cm - 3 cm = 6 cm
h = 8 cm
P = ½ * (9 cm + 6 cm) * 8 cm
P = 4 cm * 15 cm
P = 60 cm²
Pozdrawiam! - Julka