8 sinf Algebra Tekislikda tog’ri burchakli koordinatalar sistemasi. Funksiya tushunchasi

3. To’g’ri to’rtburchak va uning xossalari .

1. To’g’ri to’rtburchak tomonlari 7:13 nisbatda. Agar perimetri 160 bo’lsa , uning yuzini toping . A) 1456 B) 1432 C) 1424 D) 1356
2. To’g’ri to’rtburchak diagonallari kesishish nuqtasidan tomonlarigacha
masofa 5 va 7 ga teng . To’g’ri to’rtburchak perimetrini toping .

1. 
   12 B) 24 C) 36 D) 48
   

3. To’g’ri to’rtburchakning to’g’ri burchagi uchidan uning diagonaliga tushirilgan perpendlikulyar kichik tomoni bilan 40°li burchak hosi qiladi. Shu perpendikulyar bilan ikkinchi diagonal orasidagi burchakni toping.
A) 10° B) 20° C) 30° D) 50°
4 . To’g’ri to’rtburchak katta tomoniga tushirilgan bissektrisa uni 5 va 8 bo’laklarga bo’lsa , to’g’ri to’rtburchak perimetri toping .

1. 
   36 B) 42 C) 48 D) 36 va 42
   

5. To’g’ri to’rtburchakning 7 ga teng diagonali uning bir tomoni bilan 60° li burchak hosil qiladi . To’g’ri to’rtburchakning kichik tomonini toping .
A) 7 B) 3,5 C) 14 D) 4,5
6. ABCD to’g’ri to’rtburchakda P_ABC=20 va P_ABCD=28 bo’lsa , BD diagonal uzunligini toping . A) 4 B) 6 C) 8 D) 2
7. To’g’ri to’rtburchak diogonallari orasidagi burchak 120° ga teng bo’lib, diagonali 70 cm bo’lsa kichik tomoni uzunligini toping .
A) 35 cm B) 40 cm C) 70 cm D) 50 cm
8. To’g’ri to’rtburchak tomonlari biri ikkinchisidan 12 ga katta . Agar perimetri 100 bo’lsa , kichik tomonini toping . A) 17 B) 18 C) 19 D) 21
9. Shaklda nechta to’g’ri to’rtburchak bor ?

1. 
   5 ta B) 6 ta C) 8 ta D) 10 ta
   

10. Tomonlari 3 va 4 bo’lgan to’g’ri to’rtburchaklardan kamida nechtasi-
ni birlashtirib,kvadrat hosil qilish mumkin ? A)6 ta B)8 ta C)10 ta D)12 ta