8_sinf_geometriya_2_bsb_1_var_2_chorak_@summativ_formativ_baholash

[image: ] 8 sinf geometriyadan 2 – bsb savollari i - variant. 1. 𝐴𝐵𝐶 uchburchakda ∠𝐶 = 90°. agar 𝐵𝐶 = 4 cm va sin 𝐴 = 1 bo‘lsa, 𝐴𝐵 gipotenuza 4 uzunligini va cos 𝐵 qiymatini toping. (8 ball) 2. uchburchakning tomonlari 14 cm, 15 cm va 13 cm ga teng bo‘lsa, uning eng kichik tomoniga tushurilgan balandlik uzunligini toping. (9 ball) 3. o‘tkir burchakli uchuburchak uchun, agar sin 𝛼 = 3 bo‘lsa, cos 𝛼, tg 𝛼 va ctg 𝛼 ni 4 toping. (6 ball) 4. hisoblang. (8 ball) 𝑡𝑔45° ∙ 𝑐𝑡𝑔45° + 𝑐𝑜𝑠30° ∙ 𝑡𝑔30° − 9𝑐𝑜𝑠60° 5. rasmda berilgan ma’lumotlardan foydalanib, 𝑥 kesma uzunligini toping. (9 ball) image1.jpeg image2.png image3.png

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