gre数学考试关于几何的重点试题(三)

会计考友

　　21.In the figure above, if ABCD is a parallelogram with A at the origin, what are the coordinates of C?
. C8 g/ O0 Q. v0 q
' j0 M! V' Y" q0 b6 D　　A.(6,5)
" l! H1 \& Q* O3 S6 d; _! I! |　　B.(6,6)
　　C.(7,4)
　　D.(8,5)
2 u1 H. Q6 F4 n  o% B% G% d- n0 i　　E.(8,6)
7 R  J; }3 Z& u$ A: {7 ^　　答案：A
　　22.What fraction of a cubic meter is the volume of a cubic block of stone with edge of length 10 centimeters?(1 meter=100centimeters)
　　A.3/10
: E4 W( H$ T0 a. A2 D　　B.1/10
　　C.1/30
　　D.1/100
　　E.1/1000
　　答案：E
　　23.In the rectangular coordinate system above, for how many of the points that lie inside or on the boundary of the shaded region are both coordinates integers?
2 x# l5 s4 B) P7 q9 U3 |
　　A.six
, ^! E* R* n/ x9 [　　B.seven
: C; B+ G, Z9 M' Z5 A　　C.eight
　　D.nine
+ P" q3 [# E5 P　　E.ten
5 h' E' q& W6 p2 k, I2 g
　　答案：E

会计考友

</p> 　　24. A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop if x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?
　　A.12
, G" _) Q$ [) P5 a# b, k5 x5 h' k　　B.10
　　C.9
0 s: F4 F5 G$ ]$ M4 T+ G　　D.8
: n: X' f' l5 d' t) R　　E.6
　　答案：E
　　25.In the coordinate plane, points A and B are endpoints of a diameter of a circle with center (-2,1). If the coordinates of A are (-5,5), what are the coordinates of B?
+ R% B# t' }) @" j! \- Y　　A.(0,0)
　　B.(3,-2)
　　C.(3,-1)
　　D.(2,-2)
　　E.(1,-3)
　　答案：E