Mensuration Questions Practice Question and Answer

Q:

The sum of length, breadth and height of a cuboid is 20 cm. If the length of the diagonal is 12 cm, then find the total surface area of cuboid.

876 0

  • 1
    364 $${{cm^2}}$$
    Correct
    Wrong
  • 2
    256 $${{cm^2}}$$
    Correct
    Wrong
  • 3
    356 $${{cm^2}}$$
    Correct
    Wrong
  • 4
    264 $${{cm^2}}$$
    Correct
    Wrong
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Answer : 2. "256 $${{cm^2}}$$"

Q:

The diameter of the base of a right-circular cylinder is 12 cm and the height of the cylinder is 2.45 times the radius of its base. Find the curved surface area of the cylinder. [Use π=22/7]

872 0

  • 1

    554.4 cm2

    Correct
    Wrong
  • 2

    552.4 cm2

    Correct
    Wrong
  • 3

    556.4 cm2

    Correct
    Wrong
  • 4

    544.4 cm2

    Correct
    Wrong
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Answer : 1. "

554.4 cm2

"

Q:

Find the area of the triangle whose sides are 5 cm, 12 cm and 13 cm.

866 0

  • 1
    30 $${{cm^2}}$$
    Correct
    Wrong
  • 2
    33 $${{cm^2}}$$
    Correct
    Wrong
  • 3
    15 $${{cm^2}}$$
    Correct
    Wrong
  • 4
    25 $${{cm^2}}$$
    Correct
    Wrong
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Answer : 1. "30 $${{cm^2}}$$"

Q:

The curved surface area of a right cylinder is 3696 cm2. Its height is three times its radius. What is the capacity (in litres) of the cylinder? (Take π =22/7)

865 0

  • 1
    25.872
    Correct
    Wrong
  • 2
    30.87
    Correct
    Wrong
  • 3
    29.75
    Correct
    Wrong
  • 4
    19.008
    Correct
    Wrong
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Answer : 1. "25.872"

Q:

The height of a solid cylinder is 30 cm and the diameter of its base is 10 cm. Two identical conical holes each of radius 5 cm and height 12 cm are drilled out. What is the surface area (in cm2) of the remaining solid?

864 0

  • 1
    430 π
    Correct
    Wrong
  • 2
    230 π
    Correct
    Wrong
  • 3
    330 π
    Correct
    Wrong
  • 4
    430 π
    Correct
    Wrong
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Answer : 1. "430 π"

Q:

What is the height of a solid right circular cylinder whose radius is 3 cm and total surface area is 60 πcm?

862 0

  • 1
    3 cm
    Correct
    Wrong
  • 2
    9 cm
    Correct
    Wrong
  • 3
    7 cm
    Correct
    Wrong
  • 4
    5 cm
    Correct
    Wrong
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Answer : 3. "7 cm"

Q:

A solid metallic sphere of radius 15 cm is melted and recast into spherical balls of radius 3 cm each. What is the ratio of the surface area of the original sphere and the sum of the surface areas of all the balls?

862 0

  • 1
    1 : 5
    Correct
    Wrong
  • 2
    5 : 27
    Correct
    Wrong
  • 3
    1 : 10
    Correct
    Wrong
  • 4
    3 : 40
    Correct
    Wrong
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Answer : 1. "1 : 5"

Q:

The curved surface area of a cylinder is five times the area of its base. Find the ratio of radius and height of the cylinder.

856 0

  • 1
    2:3
    Correct
    Wrong
  • 2
    3:5
    Correct
    Wrong
  • 3
    2:5
    Correct
    Wrong
  • 4
    3:4
    Correct
    Wrong
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Answer : 3. "2:5"

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