Jawaban:
15. 5 (20) - 5(12) = ..... biji
100 - 60 = 40 biji (a)
16. 2/3 × 60 + 240/60 = .... menit
40 + 4 = 44 menit
17. t = 40 menit = 40/60 atau 2/3 jam
s = v.t
s = 48 × 2/3
s = 32 km
18. L persegi panjang = p.l
= 17.40
= 680 cm
19. L persegi panjang 1 = p.l
= 28.8
= 224 cm
L persegi panjang 2 = p.l
= (15-8). 8
= 56 cm
Luas bangun tersebut = 224 cm + 56 cm
= 280 cm²
20. keliling = 25cm + 16cm + 30cm
= 71 cm
maaf kalo benar
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Jawaban:
15. 5 (20) - 5(12) = ..... biji
100 - 60 = 40 biji (a)
16. 2/3 × 60 + 240/60 = .... menit
40 + 4 = 44 menit
17. t = 40 menit = 40/60 atau 2/3 jam
s = v.t
s = 48 × 2/3
s = 32 km
18. L persegi panjang = p.l
= 17.40
= 680 cm
19. L persegi panjang 1 = p.l
= 28.8
= 224 cm
L persegi panjang 2 = p.l
= (15-8). 8
= 56 cm
Luas bangun tersebut = 224 cm + 56 cm
= 280 cm²
20. keliling = 25cm + 16cm + 30cm
= 71 cm
maaf kalo benar