Jawaban:
1) V = πr² x t
= 22/7 x 7² x 9
4) V) = πr² x t
= 3,14 x 10² x 8
2) Diketahui : L.alas = 314 cm²
t = 18 cm
Ditanya : Volume kerucut
Jawab : V.kerucut = ⅓ x L.alas x t
= ⅓ x 314 x 18
3) Diketahui : d = 14 cm
r = d : 2
= 14 : 2 = 7 cm
t = 21 cm
= ⅓ x π x r x r x t
= ⅓ x 22/7 x 7 x 7 x 21
4) Diketahui : garis tengah = diameter = 7 cm
t = 9 cm
Ditanya : Volume
Jawab : r = d : 2
r = 7 : 2 = 3,5 cm
V = ⅓ x L.alas x t
= ⅓ x 22/7 x 3,5 x 3,5 x 9
= ⅓ x 38,5 x 9
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Jawaban:
Jawaban:
1) V = πr² x t
= 22/7 x 7² x 9
= 1386 cm³
4) V) = πr² x t
= 3,14 x 10² x 8
= 5652 cm³
2) Diketahui : L.alas = 314 cm²
t = 18 cm
Ditanya : Volume kerucut
Jawab : V.kerucut = ⅓ x L.alas x t
= ⅓ x 314 x 18
= 1.884 cm³
3) Diketahui : d = 14 cm
r = d : 2
= 14 : 2 = 7 cm
t = 21 cm
Ditanya : Volume kerucut
Jawab : V.kerucut = ⅓ x L.alas x t
= ⅓ x π x r x r x t
= ⅓ x 22/7 x 7 x 7 x 21
= 1.078 cm³
4) Diketahui : garis tengah = diameter = 7 cm
t = 9 cm
Ditanya : Volume
Jawab : r = d : 2
r = 7 : 2 = 3,5 cm
V = ⅓ x L.alas x t
= ⅓ x π x r x r x t
= ⅓ x 22/7 x 3,5 x 3,5 x 9
= ⅓ x 38,5 x 9
= 115,5 cm³