9_sinf_geometriya_2_bsb_1_var_2_chorak_@summativ_formativ_baholash

[image: ] 9 sinf geometriyadan 2 – bsb savollari i - variant. 1. teng yonli trapetsiyaning yon tomoni uzunligi 4 cm ga, kichik asosi √3 cm ga teng. agar trapetsiyaning o‘tkir burchagi 30° ga teng bo‘lsa, uning perimetri va yuzini toping. (11 ball) 2. yuzi 18√3 cm2 ga teng bo‘lgan 𝐴𝐵𝐶 uchburchakda 𝐴𝐵 = 9 cm, ∠𝐴 = 60° bo‘lsa, 𝐴𝐶 omon uzunligini va 𝐴𝐶 tomonga tushirilgan balandlik uzunligini toping. (9 ball) 3. tomonlari 10 cm, 12 cm va 14 cm bo‘lgan uchburchakning katta burchagi kosinusini toping. (9 ball) 4. tomonlari 18 cm, 24 cm va 30 cm bo‘lgan uchburchakka tashqi chizilgan aylana radiusi uzunligini toping. (10 ball) 5. 6. 𝑎⃗(7; 3) va 𝑏�⃗(−2; −5) vektorlarning skalyar ko‘paytmasini hisoblang va …

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