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Geometriya

Authored by Abdugʻani Xolmatjonov

Mathematics

11th Grade

Used 3+ times

Geometriya
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Trapetsiyaning diagonallari perpendikulyar bo'lib, birining uzunligi 6. Trapetsiyaning asoslari o'rtalarini tutashtiruvchi kesmaning uzunligi 4.5 bo'lsa, trapetsiyaning yuzini toping.

10.5
8.5
13.5
15.5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

900kg rudada temir bor. Undan 40% temiri bo'lgan aralashma ajratib olinganda, qolgani 500kg bo'ldi. Qotishmada temir konsentratsiyasi 10% ga kamaydi. Rudada necha kg temir bor.

450
550
310
650

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tengsizlikni isbotlang. √ab ≥ 2/(1/a+1/b)

Pythagorean theorem
Law of Sines
Arithmetic-geometric mean inequality
Law of Cosines

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sinuslar teoremasini isbotlang.

Sinus teoremasi aylana radiusini ifodalaydi.

Sinus teoremasi to'rtburchakning maydonini ifodalaydi.

Sinus teoremasi aylananing aylanasini ifodalaydi.

Sinus teoremasi uchburchakning tomonlari va burchaklari orasidagi munosabatni ifodalaydi.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Umumiy hadining formulasi ak=(2k+1)/2k bo'lgan ketma-ketlikning dastlabki yuzta hadining yig'indisini hisoblang.

S_100 = 199
S_100 = 250
S_100 = 150
S_100 = 100

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quyidagilardan qaysi biri silindr formulasi

2πRH

2πR2H

2πR(R+H)

2πR2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Silindr o'q kesimi kvadrat bo'lsa quyidagilardan qaysi biri to'g'ri?

H=R

R=3H

R=2H

H=2R

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