9_sinf_geometriya_2_bsb_2_var_2_chorak_@summativ_formativ_baholash

[image: ] [image: ] 9 sinf geometriyadan 2 – bsb savollari ii - variant. 1. teng yonli trapetsiyaning yon tomoni uzunligi 6 cm ga, kichik asosi 4 cm ga teng. agar trapetsiyaning o‘tkir burchagi 60° ga teng bo‘lsa, uning perimetri va yuzini toping. (11 ball) 2. yuzi 18 cm2 ga teng bo‘lgan 𝐴𝐵𝐶 uchburchakda 𝐴𝐵 = 9 cm, ∠𝐴 = 30° bo‘lsa, 𝐴𝐶 tomon uzunligini va 𝐴𝐶 tomonga tushirilgan balandlik uzunligini toping. (9 ball) 3. tomonlari 10 cm, 12 cm va 14 cm bo‘lgan uchburchakning kichik burchagi kosinusini toping. (9 ball) 4. tomonlari 10 cm, 24 cm va 26 cm bo‘lgan uchburchakka tashqi chizilgan aylana radiusi uzunligini toping. (10 ball) 5. 𝑎⃗(−5; 3) va 𝑏�⃗(4; 1) vektorlarning skalyar ko‘paytmasini hisoblang …

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