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91. ABCD is a rectangle where the ratio of the length of AB and BC is 3 : 2. If P is the mid-point of AB, then the value of sin ∠ CPB is
  A.  3/5
  B.  2/5
  C.  3/4
  D.  4/5
     
   
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92. PORA is a rectangle.AP = 22cm, PQ = 8cm.△ABC is a traingle whose verties lies on the sides of PQRA such that BQ= 2cm and QC = 16 cm.Then the length of the line joining the mid points of the sides AB and BC is
  A.  4√2 cm
  B.  5 cm.
  C.  6 cm.
  D.  10 cm.
     
   
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93. Inside a square ABCD,△BEC is an equilateral traingle.If CE and BD intersect at O,then ∠BOC is equal to
  A.  60°
  B.  75°
  C.  90°
  D.  120°
     
   
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94. A square is inscribed in a quarter-circle in such a manner that two of its adjacent vertices lie on the two radii at an equal distance from the centre, while the other two vertices lie on the circular arc.If the square has sides of lengthx,then the radius of the circle is
  A.  √2x
  B.  16x/π+4
  C.  2x/√π
  D.  √5x/√2
     
   
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95. The ratio between the number of sides of two regular polygons is 1:2 and the ratio between their interior angles is 2:3.The number of sides of these polygons is respectively
  A.  6,12
  B.  5,10
  C.  4,8
  D.  7,14
     
   
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96. Among the agnles 30°,36°,45°,50° on angle cannot be an exterior angle of a regular polygon. The angle is
  A.  30°
  B.  36°
  C.  45°
  D.  50°
     
   
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97. If the sum of interior angles of a regular polygon is equal to two times of the sum of exterior angles of that polygon,then the number of sides of that polygon is
  A.  5
  B.  6
  C.  7
  D.  8
     
   
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98. If the ratio of an external angle and an internal angle of a regular polygon is 1:17,then the number of sides of the regular polygon is
  A.  20
  B.  18
  C.  36
  D.  12
     
   
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99. ABCD is a cyclic trapezium with AB||DC and AB = diameter of the circle.If ∠CAB=30°.then ∠ADC is
  A.  60°
  B.  155°
  C.  150°
  D.  30°
     
   
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100. If ABCD be a cyclic quadrilateral in which ∠A=4x°,∠B=7x°,∠C=5y°,then x:Y is
  A.  3:4
  B.  4:3
  C.  5:4
  D.  4:5
     
   
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