1/ Mr. T, who is y years old, has been the manager of a company for more than 20 years. Mr. T has c children, half of whom are girls. The company that Mr. T manages has e emplyees, more than one for each year Mr. T has been a live. The product yce = 6018. How old is Mr. T and how many boys does he have/
2/ A convex polyhedron has 12 square faces, 8 regular hexagon faces, and 6 regular octagon faces. At each vertex of the polyhedron, one square, one hexagon, and one octagon meet. How many of the line segments that connect pairs of vertices lie in the interior of the polyhedron rather than along an edge or across a face?
作法簡單打就行了,不過答案有可能是複雜的~
2006-05-26 03:37:02 · 2 個解答 · 發問者 Pang J 2 in 科學 ➔ 數學