V=1/3*Pp*H
45cm³=1/3*(9cm²*H) /*3
135cm³= 9cm²*H /:9cm²
15cm=H
Odp. Wysokośc tego graniastosłupa ma 15 cm.
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i objetosci 45cm3.
H = ?
V = 1/3 Pp * H
1/3 * 9*H = 45
3 * H = 45
H = 15 cm
V=1/3*Pp*H
45cm³=1/3*(9cm²*H) /*3
135cm³= 9cm²*H /:9cm²
15cm=H
Odp. Wysokośc tego graniastosłupa ma 15 cm.
V=⅓*Pp*h
45cm³=⅓*9cm²*h
h=15 cm