180 Days of Spelling and Word Study: Grade 4 - Daily Spelling Workbook for Classroom and Home,

180 Days of Spelling and Word Study: Grade 4 - Daily Spelling Workbook for Classroom and Home,

Matematika Tolonglah No ngasal...........
pake cara nya y​

Tolonglah No ngasal...........
pake cara nya y​

Jawaban:

19. B. 46 bulan

20. A. 150 liter

21. D. Belah ketupat

22. C. 70 cm

23. B. 88 cm

24. B. 150 m²

25. A. 392 m²

Penyelesaian:

19. Ubah semua ke bulan

4 tahun = 48 bulan

10 bulan = 10 bulan

365 hari = 12 bulan

48 + 10 - 12 = 46 bulan

20. • Hitung volume air di bak mandi

V = p × l × t

= 50 × 50 × 60

= 150.000 cm³

• Ubah ke satuan liter

150.000 : 1.000 = 150 liter

21. Belah ketupat

22. K = 10 + 25 + 25 + 10

= 70 cm

23. K = Ο€ × d

= 22 × 28

7

= 88 cm

24. • Tentukan luas persegi panjang

L = p × l

= 6 × 10

= 60 m²

• Tentukan luas trapesium

L = (a + b) × t

2

= (12 + 6) × 10

2

= 18 × 5

= 90 m²

• Tentukan luas gabungan

L = 60 + 90

= 150 m²

25. lebar = 14 m

panjang = 2 × lebar = 2 × 14 = 28 m

maka,

L = p × l

= 28 × 14

= 392 m²

____________

BRAVE

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