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CTET Mensuration — practice questions — page 2

Explore 62 free Mensuration questions in CTET Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Mensuration questions and exercises with answers

Showing questions 31–60 of 62.

In a right circular cylinder, the line joining the two centres is how placed to the base?Read the answer and worked solution →Which everyday object is shaped like a right circular cylinder?Read the answer and worked solution →A roller of diameter 84 cm and length 1 m turns 750 times. Area levelled (pi = 22/7)?Read the answer and worked solution →Two cubes of edge b are joined face to face to make a cuboid. What is its total surface area?Read the answer and worked solution →Three cubes of edge b are joined in a row. What is the surface area of the cuboid formed?Read the answer and worked solution →Twelve identical cubes form a cuboid. Which arrangement gives the least surface area?Read the answer and worked solution →The total area of the four walls of a cuboidal room is called what?Read the answer and worked solution →Total surface area of a cuboid = lateral surface area + what?Read the answer and worked solution →A cube has edge l. What is the area of its four side faces together?Read the answer and worked solution →Find the lateral surface area of a cube of edge 3 cm.Read the answer and worked solution →A cylinder capped by two hemispheres has area equal to the sum of?Read the answer and worked solution →A test tube is a combination of which two solids?Read the answer and worked solution →Hemisphere fixed on a cube: how is the block's area found?Read the answer and worked solution →What is the curved surface area of a hemisphere of radius r?Read the answer and worked solution →A cube of edge 5 cm carries a hemisphere of diameter 4.2 cm on top. Using pi = 22/7, find the block's surface area.Read the answer and worked solution →A toy rocket has a cone of height 6 cm and base radius 2.5 cm. What is the cone's slant height?Read the answer and worked solution →The part of a circle enclosed by two radii and the arc between them is called a what?Read the answer and worked solution →The part of a circular region between a chord and its arc is called a what?Read the answer and worked solution →A sector of angle 60 degrees is cut from a circle of radius 21 cm. Using pi = 22/7, what is its area?Read the answer and worked solution →A minor sector has an angle of 80 degrees at the centre. What is the angle of the major sector?Read the answer and worked solution →In finding sector area by the unitary method, the whole circular region is treated as a sector of what angle?Read the answer and worked solution →Area of a plane region is measured in which kind of units?Read the answer and worked solution →Volume of a cuboid is also equal to which of these?Read the answer and worked solution →Cuboids made from the same 64 cubes can differ in which of these?Read the answer and worked solution →Two biscuit boxes each hold 480 cm3: one is 3 × 8 × 20 cm and the other 4 × 12 × 10 cm. Which needs less material?Read the answer and worked solution →The surface area of a solid is the sum of the areas of its what?Read the answer and worked solution →A 15 m × 10 m × 7 m hall's walls and ceiling are painted; a can covers 100 m2. Cans needed?Read the answer and worked solution →A suitcase 80 × 48 × 24 cm is covered with cloth 96 cm wide. How many metres are needed for 100 such suitcases?Read the answer and worked solution →A cabinet measures 1 m × 2 m × 1.5 m. All faces except the bottom are painted. What area is painted?Read the answer and worked solution →A tin has diameter 14 cm, height 20 cm. A label leaves 2 cm free at top and bottom. Area (pi = 22/7)?Read the answer and worked solution →

Worked practice questions

In a right circular cylinder, the line joining the two centres is how placed to the base?

  1. Perpendicular
  2. Parallel
  3. Tilted by 45°
  4. Tilted by 30°
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Correct answer: A. Perpendicular

1. A right circular cylinder has two parallel congruent circular faces. 2. The line joining their centres is perpendicular to the base. 3. A tilted joining line gives a different kind of cylinder. _Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, Solid Shapes_

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Which everyday object is shaped like a right circular cylinder?

  1. A party hat cone
  2. A tube light
  3. A cricket ball
  4. A wooden brick
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Correct answer: B. A tube light

1. A right circular cylinder has two equal circular ends and a straight round side. 2. A tube light has exactly this shape. 3. A cone, ball and brick have other shapes. _Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, 9.4.3 Cylinders_

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A roller of diameter 84 cm and length 1 m turns 750 times. Area levelled (pi = 22/7)?

  1. 990 m2
  2. 3960 m2
  3. 1980 m2
  4. 2640 m2
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Correct answer: C. 1980 m2

1. One turn covers the curved surface 2πrh = 2 × (22/7) × 0.42 × 1 = 2.64 m2. 2. 750 turns cover 750 × 2.64 = 1980 m2. 3. Using the diameter as r would give 3960 m2 wrongly. _Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, Exercise 9.2_

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