Question

Matematika no 16 sampai 19 tolong dijawab besok kumpul

Answer 1

Bab : Kecepatan, Keliling , Luas Permukaan, Satuan Berat
Jenjang : SD
Mapel : Matematika

16. Waktu berangkat = Jarak ÷ Kecepatan - Waktu Tiba
= 300 ÷ 60 - 16.00
= 5 - 16.00
= 16.00 - 5 = 11.00 (b)

17. K = 2 × phi × r
= phi × d
= 22/7 × 42
= 132 cm ( B )

18. 2 x ( ( p x l ) + ( l x t ) + ( p x t ) )
= 2 x ( ( 26 × 10 ) + ( 10 × 20 ) + ( 26 × 20 )
= 2 x ( 260 + 200 + 520 )
= 2 x 980
= 1960 cm2 ( A )

19. 5 ton - 42 kw - 80 kg = ... kg
= 5000 kg - 4200 - 80 kg
= 720 kg (d)

Answer 2

16. B
17.k = phi x d = 22/7 X 42 = 132 (B)