Chapter Exam

Chapter 11: Exploring Some Geometrical Themes — Online MCQ Test

Q: Which of the following is a three-dimensional shape?

Answer: C. Cube — A cube has length, breadth, and height, so it is a 3D shape. The other options are 2D figures.

Q: How many flat faces does a cube have?

Answer: B. 6 — A cube has 6 equal square faces.

Q: Which statement is true for both a cube and a cuboid?

Answer: B. Both have 6 faces, 12 edges, and 8 vertices — A cube and a cuboid each have 6 faces, 12 edges, and 8 vertices. Their faces differ in shape, but the counts are the same.

Q: A solid has 6 square faces. Its net is made of 4 squares in a row, with one square attached above the second square and one attached below the second square. Which solid is this?

Answer: B. Cube — This is one of the possible nets of a cube, since all 6 faces are equal squares.

MATHS · Grade 8 · CBSE(NCERT)

Practice Chapter 11: Exploring Some Geometrical Themes with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 8 MATHS. This chapter covers: Three Dimensional Shapes Cube Cuboid Prism Pyramid Cylinder Cone Sphere Nets of Solids Fractals Symmetry Patterns Visualization Perspective Spatial Reasoning Geometrical Models and.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 11: Exploring Some Geometrical Themes — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 8 MATHS — Chapter 11: Exploring Some Geometrical Themes, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a three-dimensional shape?

A. Circle
B. Square
C. Cube ✓
D. Triangle

Answer: C. Cube
A cube has length, breadth, and height, so it is a 3D shape. The other options are 2D figures.

How many flat faces does a cube have?

A. 4
B. 6 ✓
C. 8
D. 12

Answer: B. 6
A cube has 6 equal square faces.

Which of the following best describes a prism?

A. A solid with one circular base and one vertex
B. A solid with two identical and parallel polygonal faces ✓
C. A solid with no flat faces
D. A solid with only curved surface

Answer: B. A solid with two identical and parallel polygonal faces
A prism has two equal, parallel polygonal bases joined by rectangular faces.

Which statement is true for both a cube and a cuboid?

A. Both have curved surfaces only
B. Both have 6 faces, 12 edges, and 8 vertices ✓
C. Both have circular bases
D. Both have exactly one vertex

Answer: B. Both have 6 faces, 12 edges, and 8 vertices
A cube and a cuboid each have 6 faces, 12 edges, and 8 vertices. Their faces differ in shape, but the counts are the same.

A solid has 6 square faces. Its net is made of 4 squares in a row, with one square attached above the second square and one attached below the second square. Which solid is this?