Jawab:
Penjelasan dengan langkah-langkah:
8. v besar = s x s x s
1728 = s^3
s = = 12 cm
v kecil = s x s x s
343 = s^3
s = = 7 cm
t = (2 x 12) + (7 x 3) = 24 + 21 = 45 cm
18. L = (14 x 14) + 4 x (1/4 x 22/7 x 14^2)
L = 196 + 4 x (1/4 x 22/7 x 196)
L = 196 + 4 x 154
L = 196 + 616 = 812 cm2
19. K = 2 x (85 + 55) = 2 x 140 = 280 cm
Banyak pohon = 280 : 5 = 56 pohon
20. K = 22/7 x 56 = 176 cm
23. 5 rim + 75 lembar
= (5 x 500) lembar + 75 lembar
= 2500 lembar + 75 lembar = 2575 lembar
banyak kertas = 2575 - 138 = 2437 lembar
24. 0,9 l - 450 cc - 125 cm3
= (0,9 x 1000) ml - 450 ml - 125 ml
= 900 ml - 450 ml - 125 ml = 325 ml
25. Keliling = 4 × s = 4 × 35 = 140cm
Banyak kerangka = 500cm/140cm = 3 buah
Sisa = 500 - (140 × 3) = 500 - 420 = 80cm
26. 3 gross + 5 lusin
= (3 × 144) + (5 × 12)
= 432 + 60 = 492
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Jawab:
Penjelasan dengan langkah-langkah:
8. v besar = s x s x s
1728 = s^3
s =![\sqrt[3]{1728}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1728%7D "\sqrt[3]{1728}")
= 12 cm
v kecil = s x s x s
343 = s^3
s =![\sqrt[3]{343}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B343%7D "\sqrt[3]{343}")
= 7 cm
t = (2 x 12) + (7 x 3) = 24 + 21 = 45 cm
18. L = (14 x 14) + 4 x (1/4 x 22/7 x 14^2)
L = 196 + 4 x (1/4 x 22/7 x 196)
L = 196 + 4 x 154
L = 196 + 616 = 812 cm2
19. K = 2 x (85 + 55) = 2 x 140 = 280 cm
Banyak pohon = 280 : 5 = 56 pohon
20. K = 22/7 x 56 = 176 cm
23. 5 rim + 75 lembar
= (5 x 500) lembar + 75 lembar
= 2500 lembar + 75 lembar = 2575 lembar
banyak kertas = 2575 - 138 = 2437 lembar
24. 0,9 l - 450 cc - 125 cm3
= (0,9 x 1000) ml - 450 ml - 125 ml
= 900 ml - 450 ml - 125 ml = 325 ml
25. Keliling = 4 × s = 4 × 35 = 140cm
Banyak kerangka = 500cm/140cm = 3 buah
Sisa = 500 - (140 × 3) = 500 - 420 = 80cm
26. 3 gross + 5 lusin
= (3 × 144) + (5 × 12)
= 432 + 60 = 492