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Geometry and Mensuration

Geometry and Mensuration: Geometry Formulas and Mensuration Formulas. Circle Geometry. Mensuration Meaning. Mensuration Problems. Geometry Problems.

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Online Aptitude Questions with Answers on Geometry and Mensuration

Q66. **Find the area of a rhombus whose side is 25 cm and one of the diagonals is 30 cm?**

  1.  225 sq.m
  2.  360 sq.m
  3.  720 sq.m
  4.  480 sq.m
  5.  None of these

Solution : None of these
Q67. **The length of a rectangle is two - fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 1225 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units?**

  1.  140
  2.  156
  3.  175
  4.  214
  5.  None of these

Solution : 140
Q68. **The sector of a circle has radius of 21 cm and central angle 135 degrees. Find its perimeter.**

  1.  91.5 cm
  2.  93.5 cm
  3.  94.5 cm
  4.  92.5 cm
  5.  None of these

Solution : 91.5 cm
Q69. **An order was placed for the supply of a carpet whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its perimeter. Find the ratio of the areas of the carpet in both the cases.**

  1.  4:3
  2.  8:7
  3.  4:1
  4.  6:5
  5.  None of these

Solution : 8:7

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Q70. **The edge of a cube is 2a cm. Find its surface?**

  1.  6a^2 cm2
  2.  8a^2 cm2
  3.  12a^2 cm2
  4.  24a^2 cm2

Solution : 24a^2 cm2
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