giải giùm mình câu này với Một người cao l,6m đứng cách một máy ảnh 5m. Ànli của người đó trên phim cao l,6cm. (Vận dụng kiến thức toán hình học đã học) a Hãy vè ảnh và tính khoáng cách ừr vật kinh của máy ành đến phùn? b Tính tiêu cự cùa vật kính. (Đán án: OA = 5cm. OF = 4,95cm)

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