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CTET Solids Around Us — practice questions — page 3

Explore 73 free Solids Around Us questions in CTET Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Solids Around Us questions and exercises with answers

Showing questions 61–73 of 73.

A pyramid has 8 faces in all. How many sides does its base have?Read the answer and worked solution →A prism has 10 faces. What polygon forms its base?Read the answer and worked solution →Bases of which polygon give a prism a total of 15 edges?Read the answer and worked solution →Find the total number of edges of a hexagonal prism.Read the answer and worked solution →A pentagonal prism has pentagons at both ends. How many vertices does it have?Read the answer and worked solution →Pentagonal pyramid: base edges plus slanting edges. Total edges?Read the answer and worked solution →Two identical cubes are joined face to face. The solid formed is a what?Read the answer and worked solution →A cuboid has length 6 cm, breadth 4 cm and height 3 cm. How many of its faces measure 6 cm by 4 cm?Read the answer and worked solution →I have 1 flat face, 1 curved face and 1 edge. What solid am I?Read the answer and worked solution →How many edges does a cylinder have?Read the answer and worked solution →A solid has 5 faces, 6 corners, 9 edges and 2 triangular faces. Name it.Read the answer and worked solution →One square base and four triangles, with 5 corners and 8 edges: which solid?Read the answer and worked solution →For a square pyramid, what is faces + vertices - edges?Read the answer and worked solution →

Worked practice questions

A pyramid has 8 faces in all. How many sides does its base have?

  1. 7
  2. 5
  3. 8
  4. 6
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Correct answer: A. 7

1. A pyramid has 1 base face plus one triangle for each base side. 2. Let the base have n sides: faces = n + 1. 3. Then n + 1 = 8, so n = 7. 4. The base is a heptagon. _Source: Math Is Fun, Pyramids (mathsisfun.com/geometry/pyramids.html), Parts of a Pyramid_

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A prism has 10 faces. What polygon forms its base?

  1. Pentagon
  2. Dodecagon
  3. Decagon
  4. Octagon
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Correct answer: D. Octagon

1. A prism has 2 bases plus one side face for each base side. 2. Let the base have n sides: faces = n + 2. 3. Then n + 2 = 10, so n = 8. 4. A polygon with 8 sides is an octagon. _Source: Math Is Fun, Prisms (mathsisfun.com/geometry/prisms.html), Sides_

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Bases of which polygon give a prism a total of 15 edges?

  1. Triangle
  2. Heptagon
  3. Pentagon
  4. Hexagon
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Correct answer: C. Pentagon

1. A prism whose base has n sides has n edges on each base and n joining edges. 2. Total edges = 3n. 3. 3n = 15 gives n = 5. 4. A base with 5 sides is a pentagon. _Source: Math Is Fun, Prisms (mathsisfun.com/geometry/prisms.html), Bases_

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More Mathematics topics

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