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pole=ah
a=4cm
92=4h
h=92:4
h=23cm= wysokośc
2)
a=5cm
h=3cm
pole=ah=5×3=15cm²
obwód=4a=4×5=20cm
3)
4a=40cm
a=40:4=10cm= bok rombu
pole=ah
50=10h
h=50:10=5cm= wysokośc