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GRE數(shù)學(xué)的幾何例題分析
1. If the areas of three of the faces of a rectangular solid are 6,10 and 15, what is the volume of the solid?
A.30
B.90
C.150
D.300
E.450
答案：A
2.△RST lies in the XY-plane and points R and T have (x, y) coordinates (0,0) and (6,0), respectively. The area of △RST is 12.
The x-coordinate of R
The y-coordinate of S
答案：D
3.What is the maximum number of nonover-lapping regions into which 3 lines can divide the interior of a circle?
A.4
B.6
C.7
D.8
E.9
答案:C
4.In the rectangular coordinate system, line k passes through the point (0,0) and (4,8); line m passes through the points (0,1) and (4,9).
The slope of line k
The slope of line m
答案：C
5.In the stop sign shown in the figure above, all sides have equal length and all angles have equal measure. If the figure could be rotated 225 degrees in a clockwise direction, point G would be in the position of point.
A.I
B.J
C.K
D.L
E.M
答案：B
6.What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with each side of length 6?
A.5/6
B.4/5
C.3/4
D.2/3
E.5/8
答案：E
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