Xi variant Algebra

Geometriya

1. Muntazam oltiburchak tomoni 6 ga teng. Shu oltiburchak tomonlarining o‘rtasi ketma-ket tutashtirildi. So‘ngra hosil bo‘lgan tomonlarning o‘rtalari yana tutashtirildi va h.k. Hosil bo‘lgan barcha oltiburchaklar perimetrlari yig‘indisini toping.

A) B) C) D)

Javob:

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

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

Javob:	1	2	3	4

3 . to‘g‘ri to‘rtburchak, to‘g‘ri burchakli trapetsiya. bissektrisa. cm va to‘g‘ri to‘rtburchakning perimetri 32 cm bo‘lsa, trapetsiya yuzasini toping.

Javob: _______________________

4. Umumiy vatarga tiralgan ikki doirani mos yoylari va . Doiralar yuzlari nisbatini toping.
A) B) C) D)

Javob:

5. Rombning tomoni unga ichki chizilgan aylananing urinish nuqtasida 2 va 18 ga teng kesmalarga bo‘linadi. Ichki chizilgan aylananing radiusini toping.

Javob: _______________________

6. , bo‘lsa, va vektorlarning skalyar ko‘paytmasini toping.

Javob: _______________________
7. uchburchakda mediana o‘tkazilgan. Agar va bo‘lsa, tomon uzunligini toping.
Yechish: _____________________________________________________________
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Javob: _______________________

8. – parallelogram, tomonning o‘rtasi, tomonning o‘rtasi. Agar uchburchak yuzi 9 ga teng bo‘lsa, parallelogramm yuzini toping.

Yechish: _____________________________________________________________
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Javob: _______________________