Jawab:
1. Lp = 2 x ((18 x 8) + (8 x 7) + (18 x 7))
= 2 x (144 + 56 + 126)
= 2 x 326
= 652 cm²
Jawab: A
2. V = 1/2 x 7 x 12 x 38
= 7 x 6 x 38
= 1596 cm³
Jawab: D
3. V balok = 16 x 4 x 10
= 640 cm³
V limas = 1/3 x 16 x 4 x (22 - 10)
= 16 x 4 x 4
= 256 cm³
640 + 256 = 896 cm³
Jawab: C
4. r = 24 dm
V = 24 x 24 x 24
= 13.824 dm³
5. r = 8 satuan
V = 8 x 8 x 8
= 512 satuan
6. V = 4/3 x 22/7 x 28 x 28 x 28
= 91.989,33 cm³
Semoga membantu dan bermanfaat :)
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Jawab:
1. Lp = 2 x ((18 x 8) + (8 x 7) + (18 x 7))
= 2 x (144 + 56 + 126)
= 2 x 326
= 652 cm²
Jawab: A
2. V = 1/2 x 7 x 12 x 38
= 7 x 6 x 38
= 1596 cm³
Jawab: D
3. V balok = 16 x 4 x 10
= 640 cm³
V limas = 1/3 x 16 x 4 x (22 - 10)
= 16 x 4 x 4
= 256 cm³
640 + 256 = 896 cm³
Jawab: C
4. r = 24 dm
V = 24 x 24 x 24
= 13.824 dm³
Jawab: C
5. r = 8 satuan
V = 8 x 8 x 8
= 512 satuan
Jawab: A
6. V = 4/3 x 22/7 x 28 x 28 x 28
= 91.989,33 cm³
Semoga membantu dan bermanfaat :)