Geometry Book Back Questions

9th Standard

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. It is not possible to construct a triangle when its sides are

    (a)

    8.2 cm, 3.5 cm, 6.5 cm

    (b)

    6.3 cm, 3.1 cm, 3.2 cm

    (c)

    7 cm, 8 cm, 10 cm

    (d)

    4 cm, 6 cm, 6 cm

  2. In the given figure CE || DB then the value of x0 is

    (a)

    45°

    (b)

    30°

    (c)

    75°

    (d)

    85°

  3. If the diagonal of a rhombus are equal, then the rhombus is a

    (a)

    Parallelogram but not a rectangle

    (b)

    Rectangle but not a square

    (c)

    Square

    (d)

    Parallelogram but not a square

  4. The interior angle made by the side in a parallelogram is 90° then the parallelogram is a

    (a)

    rhombus

    (b)

    rectangle

    (c)

    trapezium

    (d)

    kite

  5. The angles of the triangle are 3x–40, x+20 and 2x–10 then the value of x is

    (a)

    40°

    (b)

    35°

    (c)

    50°

    (d)

    45°

  6. 4 x 2 = 8
  7. Find the complement of the following angles (1°= 60′ minutes, 1′ = 60′′ seconds)
    70°

  8. Find the value of x

  9. Identify which ones are parallelograms and which are not.

  10. Which ones are not quadrilaterals?

  11. 4 x 3 = 12
  12. In the figure, AB is parallel to CD, find x

  13. In the figure, AB is parallel to CD, find x

  14. Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

  15. Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

  16. 1 x 5 = 5
  17. Draw ΔPQR with sides PQ = 7 cm, QR = 8 cm and PR = 5 cm and construct its Orthocentre.

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