Jawaban:
1.v=1/2 × alas × tinggi
=1/2×20×10×30
=1/2dicoret×10×10×30
=3000
2.v=1/3×alas×tinggi
=1/3×15×10×12
=1/3dicoret 3 nya ×15×10×12
=360
3.betul
4. salah
4.v.=1/3×p×r²×t
=1/3×22/7×7×7×14
=1/3×22/7di coret 7 nya×7 tujunya dicoret×7×14
=22×7×14×1/3
=2156/3
=718,66/dibulatkan jadi 718,7
SETAU SAYA BEGINI MAAF KALAU SALAH
SAYA SUDAH SEMAXSIMAL MUNGKIN
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Jawaban:
1.v=1/2 × alas × tinggi
=1/2×20×10×30
=1/2dicoret×10×10×30
=3000
2.v=1/3×alas×tinggi
=1/3×15×10×12
=1/3dicoret 3 nya ×15×10×12
=360
3.betul
4. salah
4.v.=1/3×p×r²×t
=1/3×22/7×7×7×14
=1/3×22/7di coret 7 nya×7 tujunya dicoret×7×14
=22×7×14×1/3
=2156/3
=718,66/dibulatkan jadi 718,7
SETAU SAYA BEGINI MAAF KALAU SALAH
SAYA SUDAH SEMAXSIMAL MUNGKIN