📘 Practice Set 2

Chapter 1 – Three-Dimensional Shapes

Section A – Fill in the Blanks

1. A shape having length and width is called a __________ shape.
2. A line segment joining two adjacent vertices is called a __________.
3. A triangular prism has __________ triangular faces.
4. A square pyramid has __________ square face.
5. The side faces of a pyramid are __________.
6. A cylinder is also called a __________ prism.
7. A triangular pyramid has __________ edges.
8. A cuboid is also called a __________ prism.

Section B – Choose the Correct Answer

1. A closed figure with three or more sides is called:
   A) Sphere   B) Polygon   C) Cylinder   D) Edge


2. Which shape has 5 vertices?
   A) Cube   B) Square pyramid   C) Cylinder   D) Sphere


3. The bottom and top faces of a prism are:
   A) Equal   B) Curved   C) Always circular   D) Always triangular


4. Which one is a 3D shape?
   A) Triangle   B) Circle   C) Cone   D) Rectangle


5. A pentagon has how many sides?
   A) 3   B) 4   C) 5   D) 6


6. Which solid has no vertices?
   A) Cone   B) Cube   C) Sphere   D) Pyramid


7. A cuboid has how many edges?
   A) 6   B) 8   C) 10   D) 12


8. The shape made by stacking equal rectangles is:
   A) Cuboid   B) Sphere   C) Cone   D) Pyramid

Section C – True or False

1. A cone has one vertex.
2. A prism has only one base.
3. A triangular pyramid has four triangular faces.
4. A cylinder has two circular faces.
5. A square has height.
6. A cuboid has six faces.
7. A sphere has a flat face.
8. A polygon must be closed.

Section D – Complete the Table

Section E – Odd One Out

1. Cube, Cuboid, Rectangle, Cone
2. Triangle, Square, Pentagon, Sphere
3. Cone, Cylinder, Sphere, Circle
4. Vertex, Edge, Face, Radius
5. Book, Brick, Matchbox, Football

Section F – Answer in One Sentence

1. Why is a rectangle called a 2D shape?
2. Why is a cuboid called a 3D shape?
3. What is the base of a square pyramid?
4. How is a cylinder formed using circles?
5. Why is a cone different from a cylinder?

Section G – Competitive Exam Corner ⭐

1. A solid has 2 triangular faces and 3 rectangular faces. Name the solid.
2. A solid has 1 square face and 4 triangular faces. Name the solid.
3. A polygon has 7 sides. What is it called?
4. If a prism has a pentagonal base, how many vertical faces will it have?
5. If a pyramid has a hexagonal base, how many vertical faces will it have?

✅ Solutions

Section A Answers

1. two-dimensional
2. side
3. 2
4. 1
5. triangular
6. circular
7. 6
8. rectangular

Section B Answers

1. B) Polygon
2. B) Square pyramid
3. A) Equal
4. C) Cone
5. C) 5
6. C) Sphere
7. D) 12
8. A) Cuboid

Section C Answers

1. True
2. False
3. True
4. True
5. False
6. True
7. False
8. True

Section D Answers

Section E Answers

1. Rectangle
2. Sphere
3. Circle
4. Radius
5. Football

Section F Answers

1. A rectangle is called a 2D shape because it has length and width only.
2. A cuboid is called a 3D shape because it has length, width and height.
3. The base of a square pyramid is a square.
4. A cylinder is formed by placing many equal circles one above another.
5. A cone has one pointed vertex, but a cylinder has no vertex.

Section G Answers

1. Triangular prism
2. Square pyramid
3. Heptagon
4. 5 vertical faces
5. 6 vertical faces