X variant Algebra

Geometriya

1. muntazam oltiburchak tomoni uzunligi 4 cm ga teng. uchburchak yuzini toping.

A) B) C) D)

Javob:

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

1) Qaysi nuqta vektor bo‘ylab ko‘chirishda nuqtaga ko‘chadi? 2) Parallel ko‘chirishda nuqta nuqtaga ko‘chdi. Bu almashtirishda koordinata boshi 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. Trapetsiyaning asosidagi o‘tmas burchaklarning bissektrisalari uzunliklari 13 cm va 15 cm bo‘lib, ular ikkinchi asosida kesishadi. Agar trapetsiyaning balandligi 12 cm bo‘lsa, uning perimetrini toping.

Javob: _______________________

4. nuqtadan o‘tuvchi va aylana bilan unga konsentrik bo‘lgan aylana tenglamasini tuzing.

A) B)
C) D)

Javob:

5. To‘g‘ri burchakli uchburchakning to‘g‘ri burchagidan tushirilgan balandligi gipotenuzani 25,6 cm va 14,4 cm kesmalarga bo‘lsa, unga ichki chizilgan doira yuzini toping.

Javob: _______________________

6. , va vektorlar orasidagi burchak ga teng. ning qanday qiymatida va vektorlar perpendikulyar bo‘ladi?

Javob: _______________________

7. markazi nuqtada bo‘lgan aylananing diametri. diametr va vatar kesmadagi nuqtada kesishadi. , bo‘lsa, burchak kosinusini toping.

Yechish: _____________________________________________________________
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Javob: _______________________

8. – parallelogramm. cm, cm bo‘lsa, kesma uzunligini toping.

Yechish: _____________________________________________________________
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Javob: _______________________