Yasashga doir masalalarni yechish metodlari

j) D) 47^O

5. To’g’ri burchakli uchburchak gipotenuzasi 15sm, katetlari esa 3:4 nisbatda bo’lsa, uning katta katetini toping:

A) 14

B) 16

j) C) 12

D)9

6. To’g’ri burchakli uchburchakda gipotenuza 20sm, katetlar yig’indisi esa 28sm ga teng. Uchburchakning yuzini hisoblang.

A) 100

B) 96

j) C) 80

D) 120

7. Aylananing markaziy burchagi 60, u tiralgan yoyning uzunligi 10 sm ga teng bo’lsa, aylananing radiusini toping.

A)

B) 15

j) С)

D)

8. Radiusi 1 ga teng aylana uchta yoyga bo’lingan, ularga mos markaziy burchaklar 1,2 va 6 ga propotsional. Eng katta yoyning o’lchovini toping.

A)

B) 2π

j) C)

D)

9. Parallelogrammning bir tomoni ikkinchi tomonidan 4 marta katta, perimetri 202 sm, o’tkir burchagi 45^oga teng. Parallelogrammning yuzi hisoblansin.

A) 16

B) 32

j) C) 16

D) 8

10. ABCD rombning perimetri 14 ga teng. Pomb tomonlarining o’rtalari tutashtirilsa, yangi A₁ B₁ C₁ D₁ to’rtburchak hosil bo’ladi. A₁ B₁ C₁ D₁ to’rtburchak tomonlarining o’rtalari yangi A₂ B₂ C₂ D₂ to’rtburchakning uchlaridir. A₂ B₂ C₂ D₂ to’rtburchakning perimetri topilsin.

A) 10;