Question:
A double layered cone of a sheet has three triangular holes punched in it, as shown below. When the cone is unrolled, which of the following is the correct development?
A double layered cone of a sheet has three triangular holes punched in it, as shown below. When the cone is unrolled, which of the following is the correct development?
Show Hint
When unrolling cones or other shapes, visualize how the cutouts or folds will align when expanded flat.
Updated On: Jan 13, 2026
- A
- B
- C
- D
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Cone and Holes.
The problem involves a double layered cone with triangular holes punched through it. The cone is then unrolled, and we need to determine the correct pattern after unfolding.
Step 2: Analyzing the Options.
By observing the development of the cone and the position of the holes after unrolling, option (b) B accurately matches the expected development with triangular holes aligned in the correct pattern.
Step 3: Conclusion.
Thus, the correct development of the cone is option (b) B.
\[ \boxed{\text{The correct answer is (b) B.}} \]
The problem involves a double layered cone with triangular holes punched through it. The cone is then unrolled, and we need to determine the correct pattern after unfolding.
Step 2: Analyzing the Options.
By observing the development of the cone and the position of the holes after unrolling, option (b) B accurately matches the expected development with triangular holes aligned in the correct pattern.
Step 3: Conclusion.
Thus, the correct development of the cone is option (b) B.
\[ \boxed{\text{The correct answer is (b) B.}} \]
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