oblicz pole rombu ABCD jeśli
AC= 7cm BD= 1 dm
AC =4,5cm BD =6cm
AC = 0,35m BD = 2 dm
proszę o całe równania
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1dm=10cm
a) 70*10/2=350
b)4,5*6/2=13,5
c) 0,35m=35cm
2dm=20cm
35*20/2=350