Term 3 Mensuration Book Back Questions

9th Standard

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. If the sides of a triangle are 3 cm, 4 cm and 5 cm, then the area is

    (a)

    3 cm2

    (b)

    6 cm2

    (c)

    9 cm2

    (d)

    12 cm2

  2. The lateral surface area of a cube of side 12 cm is

    (a)

    144 cm2

    (b)

    196 cm2

    (c)

    576 cm2

    (d)

    664 cm2

  3. If the lateral surface area of a cube is 600 cm2, then the total surface area is

    (a)

    150 cm2

    (b)

    400 cm2

    (c)

    900 cm2

    (d)

    1350 cm2

  4. The volume of a cuboid is 660 cm3 and the area of the base is 33 cm2. Its height is

    (a)

    10 cm

    (b)

    12 cm

    (c)

    20 cm

    (d)

    22 cm

  5. The number of bricks each measuring 50 cm × 30 cm × 20 cm that will be required to build a wall whose dimensions are 5 m × 3 m × 2 m is

    (a)

    1000

    (b)

    2000

    (c)

    3000

    (d)

    5000

  6. 3 x 2 = 6
  7. Find the area of an equilateral triangle whose perimeter is 180 cm.

  8. A triangle and a parallelogram have the same area. The sides of the triangle are 48 cm, 20 cm and 52 cm. The base of the parallelogram is 20 cm. Find (i) the area of triangle using Heron’s formula. (ii) the height of the parallelogram

  9. The adjacent sides of a parallelogram measures 34 m, 20 m and the measure of the diagonal is 42 m. Find the area of parallelogram.

  10. 3 x 3 = 9
  11. The sides of a triangular park are in the ratio 9:10:11 and its perimeter is 300 m. Find the area of the triangular park.

  12. Find the TSA and LSA of a cuboid whose length, breadth and height are 7.5 m, 3 m and 5 m respectively.

  13. The total surface area of a cube is 864 cm2. Find its volume

  14. 2 x 5 = 10
  15. Find the area of a quadrilateral ABCD whose sides are AB = 8cm, BC = 15 cm, CD = 12 cm, AD = 25 cm and = 90°.

  16. A farmer has a field in the shape of a rhombus. The perimeter of the field is 400 m and one of its diagonal is 120 m. He wants to divide the field into two equal parts to grow two different types of vegetables. Find the area of the field.

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