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1.如图1,扇子的圆心角为砂,余下扇形的圆心角是少。,,与y的比通常按黄金比来设计,这样的扇种卜形溅观·若取黄金比为0.6,则‘为〔厂 A.Z16B一135 C.120D.10吕一_2.如图之,o是正六边形A刀C。五五的中阮下列图形中可由△即‘平移得到的是(A.△OCI)B.△凸IBC.△〔刃IF D.△OEF 3.?
1. As shown in Fig. 1, the center angle of the fan is sand, and the center angle of the remaining fan is less. The ratio of y, y, and y is usually designed in terms of the ratio of gold. If the golden ratio of this kind of fan-shaped splash-shaped splash is equal to 0.6, then the value is ’[factory A.Z16B-135C.120D.10]. In the figure, o is a regular hexagonal A knife C. The following figures in the 5th Five-Year Plane can be obtained by △, that is, ‘translating’ to (A.ΔOCI) B. △ convex IBC. △[edge IF D.ΔOEF 3.?