Lesson eLearning

Which 3‑D shape has all its faces as rectangles and is closed?

hard MCQ 3 marks Class 1 · Mathematics · Shapes and Space
  1. Cube
  2. Sphere
  3. Cylinder
  4. Cone
Answer
Cube

The correct answer is Cube — Therefore, the correct shape is a Cube.

Step-by-step solution

  1. A 3‑D shape with all rectangular faces and no open edges is called a rectangular prism.
  2. A cube is a special kind of rectangular prism where all faces are squares (which are rectangles).
  3. Thus, among common 3‑D shapes, the cube satisfies the condition.
  4. Therefore, the correct shape is a Cube.
Common mistake: Confusing a cylinder as having rectangular faces.

Concept tested: 3D shape with rectangular faces

Published · How this solution was prepared and checked

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