190113 还原机经选题: 文字题&几何
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According to the picture, the area of this shaded sector is A, and its corresponding central angle is θ. What is the circumference of this circle, in terms of A and θ?
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190113 还原机经选题: 文字题&几何
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According to the picture, Quadrilateral ABCD is inscribed in a circle and ∠A = 70°. ∠C=?
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190113 还原机经选题: 文字题&几何
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According to the picture, if quadrilateral ABCD and quadrilateral EFGH are rectangles, in terms of x, y, and z, what is the value of $$S_ABCD$$-$$S_EFGH$$
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190113 还原机经选题: 文字题&几何
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According to the picture, O is the center of the circle, and AC=BO=r. Which of the option describe the relationship between y and x?
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190113 还原机经选题: 文字题&几何
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The equation of a line is dx-by+c=0 (b≠0). What is the slope of the line?
(1)b+d = 10
(2)b/d = 4
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190113 还原机经选题: 文字题&几何
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What is the total length of the 10 vertical lines?
(1) a = 2
(2) b = 3
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190113 还原机经选题: 文字题&几何
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The coordinates of the center of a circle are (10, 6). The radius of the circle is 7. Is point (a, b) in the circle?
(1)5 < a < 13
(2)1 < b < 10
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190113 还原机经选题: 文字题&几何
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According to the picture, in quadrilateral ABCD, AB//CD,AB=BC=6,∠B=60°,∠D=45°. CD=?
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190113 还原机经选题: 文字题&几何
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According to the picture, the bottom radius of the conical funnel is R and the height is 16. A person pours water into this funnel, and the conical bottom radius of water is r. r/R = 3/4. What is the height of the cone formed by water?
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190113 还原机经选题: 文字题&几何
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According to the picture, ABCD is a square. △ADF and △DCE are equilateral triangles. ∠AGF=?
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190113 还原机经选题: 文字题&几何
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The area of six faces of box A is x; the area of six faces of box B is 2x, 4x, 8x, 2x, 4x, 8x. The volume of A is 16. What's the volume of B?
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190113 还原机经选题: 文字题&几何
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According to the picture, four circles with radius of 1 are tangent to each other. What is the radius of the common circumscribed circle?
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190113 还原机经选题: 文字题&几何
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The product of x-intercept and y-intercept of a line is positive. Which of the following options does the slope k of the line satisfy?
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190113 还原机经选题: 文字题&几何
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According to the picture, a cylinder was placed at an angle on a horizontal plane. A is the center of the bottom circle, and AD is the radius of the circle. BC=10. AC is horizontal to the horizontal plane and perpendicular to BD. DC=?
(1)∠ADE=60°
(2)AC=2AD
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190124 还原机经选题: 文字题&几何
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Does the parabola y=a$$x^{2}$$+bx+c intersect with x-axis?
1: a < 0
2: c > 0
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190124 还原机经选题: 文字题&几何
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There is a cone container that contains some water (as shown in the figure). H = 4R. The water flows out at the speed of q. How long does all of the water flow out?
1: The distance between water surface and cone vertex is h.
2: The radius of the water surface is r.
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190124 还原机经选题: 文字题&几何
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The center of circle O is the coordinate origin. The radius of the circle is 50.p($$x_p$$,$$y_p$$) and Q(50,0) are all on the circle. What is the distance of PQ?
1:$$x_p$$=-30
2:$$y_p$$=-40
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190124 还原机经选题: 文字题&几何
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The x-intercept and y-intercept of line l are $$x_c$$ and $$y_c$$, respectively. What is the slope of line ?
1:$$x_c$$$$y_c$$>0
2:(1,1) is in the line .
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190124 还原机经选题: 文字题&几何
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The distance between the point (x,0) and (-1,3) equals to that between (x,0) and (8,4). x=?
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190124 还原机经选题: 文字题&几何
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Two circles are drawn with the two long sides of the rectangle ABCD as the diameter. The centers of the circles are E and F. EF intersects two circles at G and H, respectively. What is the circumference of the rectangle ABCD?
1:AE=9
2:EG=GH
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