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rysujesz trójkąt prostokątny
|\
x | \
| \ 26 cm
| \
|_____\
10
x2 + 10 do2 = 26 do2
x2 + 100 = 676
x2 = 576/pierwiastek
x = 24
H = 24 cm = 2,4 dm
V = 1/3Pp*H
V = 1/3*4*2,4 = 3,2 dm3 = 3,2 l
Odp. Pojemność wazony wynosi 3,2l