Ii variant Algebra

Geometriya

1. muntazam oltiburchakning va tomonlaridan mos holda shunday va nuqtalar olinganki, cm, cm, cm, cm bo‘ladi. kesma uzunligini toping.

A) B) C) D)

Javob:

2. Berilgan savollarga to‘g‘ri javobni mos qo‘ying.

1) Parallel ko‘chirishda koordinata boshi nuqtaga ko‘chdi. Bu almashtirishda nuqta qaysi nuqtaga ko‘chadi? 2) vektor bo‘ylab ko‘chirishda nuqta qaysi nuqtaga ko‘chadi? 3) o‘qiga nisbatan simmetriyada nuqta qaysi nuqtaga o‘tadi?? 4) nuqtaga nisbatan simmetriyada nuqta qaysi nuqtaga o‘tadi?	A)
	B)
	C)
	D)
	E)
	F)

Javob:	1	2	3	4

3. Asoslari va bo‘lgan trapetsiyaning yon tomoni davomidan shunday nuqta olinganki, bunda bo‘ladi. Agar cm, cm,

cm, cm bo‘lsa, ning uzunligini toping.
Javob: _______________________

4. cm, cm, cm, bo‘lsa, chizmadan foydalanib aylana radiusini toping.

A) B) C) D)

Javob:

5. Teng yonli trapetsiyaga ichki chizilgan aylananing markazidan uning kichik asosidagi uchigacha bo‘lgan masofa 15 cm ga, katta asosidagi uchigacha bo‘lgan masofa 20 cm ga teng. Shu trapetsiyaning yuzini hisoblang.

Javob: _______________________

6. Agar bo‘lsa, ning qiymatini toping.

Javob: _______________________

7. ABCD rombda K va N nuqtalar, mos ravishda, BC va CD tomonlarning o‘rtasi. Agar bo‘lsa, burchakning kosinusini toping.

Yechish: _____________________________________________________________
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Javob: _______________________

12. – kvadrat, – romb. Agar cm bo‘lsa, bo‘yalgan soha yuzini toping.

Yechish: _____________________________________________________________
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Javob: _______________________