Volume and Surface Area Practice Question and Answer

Q:

A circle and a rectangle have the same perimeter. The sides of rectangle are 18 cm and 26 cm then find out the area of circle?

1902 0

  • 1
    $$ {230cm^2}$$
    Correct
    Wrong
  • 2
    $$ {320cm^2}$$
    Correct
    Wrong
  • 3
    $$ {616cm^2}$$
    Correct
    Wrong
  • 4
    $$ {154cm^2}$$
    Correct
    Wrong
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Answer : 3. "$$ {616cm^2}$$"

Q:

If an equilateral triangle is inscribed in a circle of area 48 π square units, then the perimeter of the triangle is:

1883 0

  • 1
    72 units
    Correct
    Wrong
  • 2
    36 units
    Correct
    Wrong
  • 3
    48 units
    Correct
    Wrong
  • 4
    $${48}{\sqrt{3}}$$ units
    Correct
    Wrong
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Answer : 2. "36 units"

Q:

The height of a wall is six times its width and the length of the wall is seven times its height. If volume of the wall be 16128 cube m, its width is 

1853 0

  • 1
    5m
    Correct
    Wrong
  • 2
    4m
    Correct
    Wrong
  • 3
    4.5m
    Correct
    Wrong
  • 4
    6m
    Correct
    Wrong
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Answer : 2. "4m "

Q:

An open box is made of wood 3 cm thick. Its external dimensions are 1.36 m, 1.06 m and 8.3 dm. The cost of painting the inner surface of the box at 50 paise per 100 sq. cm (in Rs.) is 

1835 0

  • 1
    232
    Correct
    Wrong
  • 2
    246
    Correct
    Wrong
  • 3
    249
    Correct
    Wrong
  • 4
    256
    Correct
    Wrong
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Answer : 3. "249 "

Q:

A rectangular ground 16m long and 10m breadth. It has a gravel path 2.5m wide all around it on the outside. What is the area of the path?

1827 0

  • 1
    159 m²
    Correct
    Wrong
  • 2
    155 m²
    Correct
    Wrong
  • 3
    187 m²
    Correct
    Wrong
  • 4
    183 m²
    Correct
    Wrong
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Answer : 2. "155 m²"

Q:

Area of a circle inscribed in a square is 308 cm2.The length of the diagonal of the square is

1809 0

  • 1
    16 cm
    Correct
    Wrong
  • 2
    28 cm
    Correct
    Wrong
  • 3
    24 cm
    Correct
    Wrong
  • 4
    22 cm
    Correct
    Wrong
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Answer : 2. "28 cm"

Q:

The difference of the circumference and radius of a circle is 37 cm. Area of the circle is

1807 0

  • 1
    150 sq.cm
    Correct
    Wrong
  • 2
    84 sq.cm
    Correct
    Wrong
  • 3
    77 sq.cm
    Correct
    Wrong
  • 4
    154 sq.cm
    Correct
    Wrong
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Answer : 4. "154 sq.cm"

Q:

If a chord of length 30 cm is at a distance of 8 cm from the center of the circle, then the length of the chord of the same circle which is at a distance of 15 cm from the center is equal to

1792 0

  • 1
    12 cm
    Correct
    Wrong
  • 2
    18 cm.
    Correct
    Wrong
  • 3
    16 cm
    Correct
    Wrong
  • 4
    20 cm.
    Correct
    Wrong
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Answer : 3. "16 cm"

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