Jawaban:

10. 1.500 cm³

11. 4.096 cm³

12. 24 dm

13. 12 cm

14. 104 cm

15. 156 cm

16. 1.000 cm³

17. 150 cm²

18. 14 cm

19. 96 cm

20. 120 cm

Penjelasan dengan langkah-langkah:

10. V balok

= p x l x t

= 20 x 15 x 5

= 300 x 5

= 1.500 cm³

11. V kubus

= R x R x R

= 16 x 16 x 16

= 256 x 16

= 4.096 cm³

12. Rusuk kubus

= ³√V

= ³√13.824

13 = 2 x 2 x 2 = 8 ( mendekati )

824 = 4 x 4 x 4 = 64

puluhan = 2

satuan = 4

= 24 dm

1 liter = 1 dm³

13. Rusuk kubus

= ²√La

= ²√144

= 1 | 44

1 = 1 x 1 = 1

44 = 2 x 2 = 4

puluhan = 1

satuan = 2

= 12 cm

14. Panjang rusuk balok

= 4 x ( p + l + t )

= 4 x ( 12 + 10 + 4 )

= 4 x 26

= 104 cm

15. Panjang rusuk kubus

= 12 x Rusuk

= 12 x 13

= 156 cm

16. V kubus

= R x R x R

R = Ka ÷ 4

= 40 ÷ 4

= 10 cm

= 10 x 10 x 10

= 100 x 10

= 1.000 cm³

17. Lp kubus

= 6 x S²

= 6 x 5 x 5

= 30 x 5

= 150 cm²

18. Rusuk kubus

Lp = 6 x S²

S² = Lp ÷ 6

= 1.176 ÷ 6

= 196

S = √196

= 14 cm

19. Panjang kawat

= 3 x Ka

= 3 x 32

= 96 cm

20. panjang rusuk kubus

R = ³√V

= ³√1.000

= 10 cm

Panjang seluruh rusuk

= 12 x 10

= 120 cm

Semoga dapat membantu

dan mohon maaf bila salah