Penjelasan dengan langkah-langkah:
VbR & LpBR
t = r
Volume
= V.½Bola + V.Tabung + V.Kerucut
= [½.4/3.πr³] + [πr³] + [⅓πr³]
= πr³ [4/6 + 1 + ⅓]
= πr³ [ 4/6 + 6/6 + 2/6 ]
= πr³ [ 12/6 ]
= πr³ [2]
= 2πr³ ✓
Luas permukaan
jika selimut kerucut
= √(r²+r²)
= √2r²)
= r√2
Luas permukaan seluruhnya
= LP.½Bola + LP.Tabung tanpa alas dan tutup + L.Selimut Kerucut
= [½4πr²] + [2πr²] + [πr.r√2]
= [2πr²] + [2πr²] + [πr²√2]
= 4πr²+πr²√2 ✓
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Penjelasan dengan langkah-langkah:
VbR & LpBR
t = r
Volume
= V.½Bola + V.Tabung + V.Kerucut
= [½.4/3.πr³] + [πr³] + [⅓πr³]
= πr³ [4/6 + 1 + ⅓]
= πr³ [ 4/6 + 6/6 + 2/6 ]
= πr³ [ 12/6 ]
= πr³ [2]
= 2πr³ ✓
Luas permukaan
jika selimut kerucut
= √(r²+r²)
= √2r²)
= r√2
Luas permukaan seluruhnya
= LP.½Bola + LP.Tabung tanpa alas dan tutup + L.Selimut Kerucut
= [½4πr²] + [2πr²] + [πr.r√2]
= [2πr²] + [2πr²] + [πr²√2]
= 4πr²+πr²√2 ✓