wysokosc stozka jest rowna 8 a twozaca jest nachylona do podstawy pod katem 80 stopni oblicz objetosc
l=8
sin80=h/l
0,9848=h/8
h=8·0,9848
h=7,878≈7,9
cos80=r/l
0,1736=r/8
r=8·0,1736
r=1,388≈1,39
V=1/3πr²·h =1/3π·(1,39)²·7,9=1/3·1,93 ·7,9=5,08 ≈5,1 j³
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l=8
sin80=h/l
0,9848=h/8
h=8·0,9848
h=7,878≈7,9
cos80=r/l
0,1736=r/8
r=8·0,1736
r=1,388≈1,39
V=1/3πr²·h =1/3π·(1,39)²·7,9=1/3·1,93 ·7,9=5,08 ≈5,1 j³