Parallelogramm va uning xossalari — 8-sinf Geometriya test savollari

1.Parallelogrammning ikki burchagi yig'indisi 176° ga teng (bu burchaklar qo'shni bo'la olmaydi, chunki qo'shni burchaklar yig'indisi 180° ga teng). Parallelogrammning eng katta burchagini toping.

• A)96°
• B)176°
• C)88°
• D)92°

2.Parallelogrammning perimetri 68 cm, bir tomoni ikkinchisidan 8 cm uzun. Uning katta tomonini toping.

• A)17 cm
• B)26 cm
• C)13 cm
• D)21 cm

3.Parallelogrammning qo'shni tomonlari yig'indisi 24 cm, ayirmasi 6 cm ga teng. Uning kichik tomonini toping.

• A)12 cm
• B)15 cm
• C)9 cm
• D)18 cm

4.Parallelogrammning ikki tomoni nisbati 4 : 5 kabi, perimetri esa 7,2 dm ga teng. Katta tomonini santimetrlarda toping.

• A)16 cm
• B)40 cm
• C)18 cm
• D)20 cm

5.ABCD parallelogrammda AB = 8 cm, $BC$ = 14 cm, AC = 18 cm, BD = 14 cm; O — diagonallarning kesishish nuqtasi. AOB uchburchakning perimetrini toping.

• A)30 cm
• B)18 cm
• C)22 cm
• D)24 cm

6.Parallelogrammning bir burchagi ikkinchisidan 3 marta katta. Uning kichik burchagini toping.

• A)60°
• B)135°
• C)30°
• D)45°

7.Parallelogrammning diagonali uni ikkita teng uchburchakka ajratadi. Shu uchburchaklardan birining perimetri 34 cm, parallelogrammning shu diagonali esa 12 cm. Parallelogrammning perimetrini toping.

• A)34 cm
• B)68 cm
• C)22 cm
• D)44 cm

8.ABCD parallelogrammda $\angle$A = 65°. $\angle$B ni toping.

• A)65°
• B)25°
• C)155°
• D)115°

9.Parallelogrammning $\angle$C = 72°. $\angle$A necha gradus?

• A)108°
• B)144°
• C)36°
• D)72°

10.Parallelogrammda diagonallar O nuqtada kesishadi. AO = 6 cm bo'lsa, AC diagonalining uzunligini toping.

• A)3 cm
• B)18 cm
• C)6 cm
• D)12 cm