Class 8 Mensuration CBSE Questions & Answers

Class 8 · Mensuration

This is Mathematics Class 8 Mensuration CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Mrs. Kaushik has a square plot with the measurement as shown in the figure. She wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of Rs 55 per \({{\text{m}}^{\text{2}}}\).
  • A
    Rs 16,875
  • B
    None of these
  • C
    Rs 17,875
    Correct
  • D
    Rs 18,875
2
A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 \({{\text{m}}^{\text{2}}}\)?
  • A
    None of these
  • B
    55000 tiles
  • C
    35000 tiles
  • D
    45000 tiles
    Correct
3
The area of a trapezium shaped field is 480 m2, the distance between two parallel sides is 15 m and one of the parallel side is 20 m. Find the other parallel side.
  • A
    None of these
  • B
    33 m
  • C
    22 m
  • D
    44 m
    Correct
4
The area of a rhombus is 240 cm2 and one of the diagonals is 16 cm. Find the other diagonal.
  • A
    40 cm
  • B
    30 cm
    Correct
  • C
    50 cm
  • D
    None of these
5
The shape of the top surface of a table is a trapezium. Find its area if its parallel sides are 1 m and 1.2 m and perpendicular distance between them is 0.8 m.
  • A
    0.88 \({{\text{m}}^{\text{2}}}\)
    Correct
  • B
    0.88 \({{\text{m}}^{\text{3}}}\)
  • C
    None of these
  • D
    0.88 m
6
The area of a trapezium is 34 cm2 and the length of one of the parallel sides is 10 cm and its height is 4 cm. Find the length of the other parallel side.
  • A
    7 m
  • B
    14 cm
  • C
    None of these
  • D
    7 cm
    Correct
7
Length of the fence of a trapezium shaped field ABCD is 120 m. If BC = 48 m, CD = 17 m and AD = 40 m, find the area of this field. Side AB is perpendicular to the parallel sides AD and BC.
  • A
    660 m
  • B
    660 \({{\text{m}}^{\text{2}}}\)
    Correct
  • C
    660 \({{\text{m}}^{\text{3}}}\)
  • D
    None of these
8
The diagonal of a quadrilateral shaped field is 24 m and the perpendiculars dropped on it from the remaining opposite vertices are 8 m and 13 m. Find the area of the field.
  • A
    None of these
  • B
    252 m
  • C
    252 \({{\text{m}}^{\text{3}}}\)
  • D
    252 \({{\text{m}}^{\text{2}}}\)
    Correct
9
Find the volume of a box, which is in the form of a rectangular prism, with a length of6 in., a height of 3 in. and width of 5 in.
  • A
    95 \({\text{in}}{.^{\text{3}}}\)
  • B
    90 \({\text{in}}{.^{\text{3}}}\)
    Correct
  • C
    100 \({\text{in}}{.^{\text{3}}}\)
  • D
    None of these
10
What is the surface area of a book 13 cm long, 10 cm wide, and 3 cm high?
  • A
    320 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • B
    None of these
  • C
    160 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    398 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
11
Each side of a square piece of tissue paper is 3 centimeters long. What is the tissue paper's area?
  • A
    9 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • B
    15 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    None of these
  • D
    12 \({\text{c}}{{\text{m}}^{\text{2}}}\)
12
What is the surface area of the drawing box, if its length is 16 cm, width 6 cm, and height 3 cm?
  • A
    162 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • B
    324 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • C
    None of these
  • D
    25 \({\text{c}}{{\text{m}}^{\text{2}}}\)
13
The dimensions of an iron box are \({\text{9 ft }} \times {\text{ 4}}.{\text{4 ft }} \times {\text{ 2}}.{\text{5 ft}}\). What is the cost of the iron sheet used to make the box, if the cost of the sheet is Rs 6 per square foot?
  • A
    Rs 877.2
    Correct
  • B
    Rs 887.2
  • C
    Rs 777.2
  • D
    Rs 977.2
14
A rectangular ink pad has a perimeter of 36 centimeters and an area of 80 square centimeters. What are the dimensions of the ink pad?
  • A
    12 cm and 10 cm
  • B
    12 cm and 12 cm
  • C
    8 cm and 12 cm
  • D
    8 cm and 10 cm
    Correct
15
Two cubes each with an edge of 30 cm. are joined to form a rectangular prism. What is the surface area of the rectangular prism formed?
  • A
    7200 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • B
    54000 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    9000 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • D
    10800 \({\text{c}}{{\text{m}}^{\text{2}}}\)