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P = 0,5*8cm*7cm =4cm * 7cm =28cm²
28cm² = 0,5 * 10cm * h
28cm² = 5cm * h
h = 5,6cm
P = 1/2*8cm*7cm
P = 28cm2
P = 1/2*a*h
28cm2 = 1/2*10cm*h
28cm2 = 5cm*h
h = 28cm2/5cm
h = 5,6 cm
Odp. Wysokość odpowiadająca drugiemu bokowi wynosi 5,6 cm
:p :D