Odpowiedzi

2010-02-22T16:30:55+01:00
H=9cm
a=2×6cm=12cm
P=a×h×½
P=9cm×6cm
P=54cm²
2010-02-22T16:33:58+01:00
H = 9 cm
a = 6 cm * 2 = 12 cm
P = 1/2 * a * h
P = 1/2 * 12 * 9
P = 54 cm²