tolongin ya kak???? ?????????

(11). rusuk = 8

(12). 1 3/4 + 4 1/5 + 2 7/10
= 1 15/20 + 4 4/20 + 2 14 /20
= 8 33/20 = 9 13/20

(13).jarak pada peta × skala
= 5 × 400 = 2.000 cm = 20m

(14).BCFG

(15).rusuk = 10

(16).5.566 = 6.000

(17).0,27 + 3/20 - 25%
= 27/100 + 15/100 - 25/100
= 17/100 = 17% = 0,17

(18).9/10 : 2 1/4 = 9/10 : 9/4
= 9/10 × 4/9 = 2/5

(19).9/20 = 45/100 = 45%

(20). 0,5 + 0,75 - 0,95
= 50/100 + 75/100 - 95/100
= 30/100 = 30%

(21).jari2 = diameter : 2
= 25 : 2 = 12,5

(22).4 simetri putar

(23). vita : sari = 4 : 7
jumlah uang = 121.000

= 4 + 7 = 11
vita = 4/11 × 121.000 =44.000
sari = 7/11 × 121.000 = 77.000


(24).1 1/2 jam + 45 menit + 1800 detik =
1 1/2 jam = 90 menit
1800 detik = 30menit

= 90 + 45 + 30 = 165 menit

(25). 3 dam ^2 + 250 m^2 = .....m^2
300 + 250 = 550 m^2

1.5 sisi
   8 rusuk
   5 titik sudut
   1 titik puncak

2. 7/4+21/5+27/10=35/20+81/20+54/20=170/20=4 10/20=4 1/2

3.1:400×5=2.000 cm 
                =0,02 km

4. sisi BCFG

5.15

6. 6.000

7. 0,27+0,15=0,44-0,25=0,19

8. 9/10×9/4=81/40=4 1/40

9. 45%

10. 0,5+0,75=1,45-0,95=0,55

11. 25÷2=12,5

12. 4 putaran

13. 4/11×121.000,00=44.000,00 
                                besar uang vita adalah 44.000,00

14. 3/2×60=45 menit+45 menit+30 menit=90+30=120 menit

15. 3 dam²=300 m²+250 m²=550 meter²

semoga benar 
amin.......................