wpisz brakujące dane
TRAPEZ
b=?
a=?
h=4cm
P=36cm
z gory dzieki
P=½(a+b)*h
36=½(a+b)*4
36=2(a+b)
(a+b)=18cm
a=18-b
b=18-a
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P=½(a+b)*h
36=½(a+b)*4
36=2(a+b)
(a+b)=18cm
a=18-b
b=18-a