GRE数学的几何例题分析

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GRE数学的几何例题分析

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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