Uy » Online olimpiada » Matematika olimpiada » 7-sinflar Matematika olimpiada №2 Matematika olimpiada 7-sinflar Matematika olimpiada №2 InfoMaster Dekabr 12, 2022 135 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 7-sinflar Matematika olimpiada №2 07.12.2022 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 1. To`g`ri burchakli parallelepipedning asosi tomoni c sm ga teng bo`lgan kvadratdan iborat bo`lib,balandligi d Bu parallelepipeddan qirrasi c sm bo`lgan kub qirqib olindi. Qolgan qismining hajmi V (sm3)ni hisoblash formulasini tuzing. Agar c=2,5 sm, d=4 sm bo`lsa, V ni toping. 81/8 1/8 9 75/8 2 / 25 2. Ifodani ko`paytuvchilarga ajrating: 9b²-(a-3b)² a² (6b-a)a (6b-a)(6b+a) 18b²-a²+6ab 3 / 25 3. Hisoblang: I III IV II 4 / 25 4. Tenglamani yeching: 8x+5=119+(7-3x) 1,1 11 1,2 12 5 / 25 5. ABC uchburchakning AD medianasi BC tomondan keyin DE= AD bo`lgan kesmaga davom ettirilib, E nuqta B nuqta bilan tutashtirildi.Agar ∠ACD=450, ∠ABD=350 bo`lsa, ∠ABE ni toping. 10° 70° 75° 80° 6 / 25 6. C D A B 7 / 25 7. D C B A 8 / 25 8. A D C B 9 / 25 9. B A D C 10 / 25 10. A D C B 11 / 25 11. A D B C 12 / 25 12. C D A B 13 / 25 13. B C A D 14 / 25 14. D B C A 15 / 25 15. A C D B 16 / 25 16. B A C D 17 / 25 17. A B C D 18 / 25 18. A B D C 19 / 25 19. A C B D 20 / 25 20. C B D A 21 / 25 21. A B D C 22 / 25 22. D C A B 23 / 25 23. A C D B 24 / 25 24. D B C A 25 / 25 25. B C D A 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
