Untuk soal nya ada di foto yh!
(JIKA KALIAN NGASAL SAYA AKAN LAPORKAN KALIAN!!!!!!!!!)
Semangat yh :v
1. a kubus
b L = 4 x 4 = 4 x 4 = 16 cm²
c V = s x s x s = 4 x 4 x 4 = 62 cm³
2. a balok
b L = p x l = 19 x 7 = 133 cm²
c V = p x l x t = 19 x 7 x 13 = 1.729 cm³
3. L = s x s = 39 x 39 = 1.521 cm²
4. V = p x l x t = 120 x 80 x 65 = 624.000 cm³
5. S= √L = √1.944 = 44 cm
6. V = s³ s = ³√V = ³√12.167 = 23 cm
JAWABAN :
1. a. Nama bangun : Kubus.
b. L = 6 ( s × s )
= 6 ( 8 × 8 )
= 6 ( 64 )
= 384 cm
c. V = s × s × s
= 8 × 8 × 8
= 512 cm³
2. a. Nama bangun : Balok.
b. L = 2 ( 19 × 7 × 19 × 13 × 7 × 13 )
= 2 ( 133 + 247 + 91 )
= 2 × 471
= 942 cm
c. V = p × l × t
= 19 × 7 × 13
= 1.729 cm³
3. L = 6 ( s × s )
= 6 ( 39 × 39 )
= 6 ( 1521 )
= 9.126 cm
4. V = p × l × t
= 120 × 80 × 65
= 624.000 cm³
5. L = 6 × s × s
s = \/ 1944
= 324
= 18 cm
6. r = \/ 12.167
r = 23 cm
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☆ SEMOGA MEMBANTU ☆
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