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ta wysokość wynosi 23cm
b. O=4*5cm=20cm P=5cm*3cm=15cm2
c.40cm/4=10
50cm2/10=5cm
wynosi 5 cm
92cm²=4cm*h
h= 23
Wysokość trapezu wynosi 23cm
P=5cm*3cm
P=15cm² 4*5
Ob=20cm
50cm²=10cm² 50 cm 2 : 10= 5