Jawaban:
[tex]1.a \: volume \: balok = p \times l \times t \\ = 20 \times 7 \times 10 \\ = 1.400 \\ b . volume \: balok = p \times l \times t \\ = 14 \times 9 \times 6 \\ = 756[/tex]
Penjelasan dengan langkah-langkah:
1. a. p = 20, l = 7 cm, t = 10 cm
Lp = 2 × ( pl + lt + pt )
= 2 × ( 20.7 + 7.10 + 20.10 )
= 2 × ( 140 + 70 + 200 )
= 2 × 410
= 820 cm²
b. p = 14 cm, l = 9 cm, t = 6 cm
= 2 × ( 14.9 + 9.6 + 14.6 )
= 2 × ( 126 + 54 + 84 )
= 2 × 264
= 528 cm²
2. a. Lp = 6 × s² = 6 × 13² = 6 × 169 = 1014 cm²
b. Lp = 6 × s² = 6 × 15² = 6 × 225 = 1350 cm²
c. Lp = 6 × s² = 6 × 22² = 6 × 484 = 2904 cm²
3. Lp = 2 (p.l + p.t + l.t)
62 = 2(5 × 3 + 5t + 3t)
31 = 15 + 8t
8t = 16
t = 2 cm
4. Lp = 2 × ( pl + lt + pt )
427 = 2 × ( 12l + 8l + 12.8 )
427 = 2 × ( 12l + 8l + 96 )
427 = 2 × ( 20l + 96 )
427 = 40l + 192
40l = 427 - 192
40l = 235
l = 235 ÷ 40
l = 5,875 cm²
5. Lp kubus = 6s2
1.014 = 6s²
s² = 1.014 ÷ 6
= 169
s = √169
= 13 cm
6. Lp kubus = 6s2
216 = 6s²
s² = 216 ÷ 6
= 36
s = √36
= 6 cm
maaf kalau ada yang salah
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Jawaban:
[tex]1.a \: volume \: balok = p \times l \times t \\ = 20 \times 7 \times 10 \\ = 1.400 \\ b . volume \: balok = p \times l \times t \\ = 14 \times 9 \times 6 \\ = 756[/tex]
Verified answer
Penjelasan dengan langkah-langkah:
1. a. p = 20, l = 7 cm, t = 10 cm
Lp = 2 × ( pl + lt + pt )
= 2 × ( 20.7 + 7.10 + 20.10 )
= 2 × ( 140 + 70 + 200 )
= 2 × 410
= 820 cm²
b. p = 14 cm, l = 9 cm, t = 6 cm
Lp = 2 × ( pl + lt + pt )
= 2 × ( 14.9 + 9.6 + 14.6 )
= 2 × ( 126 + 54 + 84 )
= 2 × 264
= 528 cm²
2. a. Lp = 6 × s² = 6 × 13² = 6 × 169 = 1014 cm²
b. Lp = 6 × s² = 6 × 15² = 6 × 225 = 1350 cm²
c. Lp = 6 × s² = 6 × 22² = 6 × 484 = 2904 cm²
3. Lp = 2 (p.l + p.t + l.t)
62 = 2(5 × 3 + 5t + 3t)
31 = 15 + 8t
8t = 16
t = 2 cm
4. Lp = 2 × ( pl + lt + pt )
427 = 2 × ( 12l + 8l + 12.8 )
427 = 2 × ( 12l + 8l + 96 )
427 = 2 × ( 20l + 96 )
427 = 40l + 192
40l = 427 - 192
40l = 235
l = 235 ÷ 40
l = 5,875 cm²
5. Lp kubus = 6s2
1.014 = 6s²
s² = 1.014 ÷ 6
= 169
s = √169
= 13 cm
6. Lp kubus = 6s2
216 = 6s²
s² = 216 ÷ 6
= 36
s = √36
= 6 cm
maaf kalau ada yang salah