Uy » Online olimpiada » Matematika olimpiada » 7-sinflar Matematika olimpiada №2 Matematika olimpiada 7-sinflar Matematika olimpiada №2 InfoMaster Dekabr 12, 2022 147 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. Agar qo`shni burchaklardan biri ikkinchisidan 450 katta bo`lsa,ularni toping . 112°30'; 67°30' 135°;45° 111°30'; 68°30' 113°;67° 2 / 25 2. Umumiy AB asosga ega bo`lgan ACB va ADB uchburchaklar berilgan. CD va AB lar O nuqtada kesishadi. Agar ∠DAB= ∠CBA, ∠CAB= ∠DBA, DB=24 sm bo`lsa, CA ni toping. 48 sm 24 sm 30 sm 12 sm 3 / 25 3. 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. 75/8 1/8 9 81/8 4 / 25 4. Ifodani ko`paytuvchilarga ajrating: 9b²-(a-3b)² a² (6b-a)(6b+a) (6b-a)a 18b²-a²+6ab 5 / 25 5. Agar a=-8,3 bo`lsa, 0,6a+0,4∙(a-5,5) ifodaning qiymatini toping. 10,5 – 10,5 – 1,05 1,05 6 / 25 6. B D C A 7 / 25 7. C D B A 8 / 25 8. C A D B 9 / 25 9. B D C A 10 / 25 10. D A B C 11 / 25 11. B D A C 12 / 25 12. B C A D 13 / 25 13. B A D C 14 / 25 14. B A D C 15 / 25 15. B C D A 16 / 25 16. C A B D 17 / 25 17. A B D C 18 / 25 18. A D B C 19 / 25 19. D B C A 20 / 25 20. A C D B 21 / 25 21. C D A B 22 / 25 22. A D B C 23 / 25 23. C A D B 24 / 25 24. B A D C 25 / 25 25. D C A B 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
