CBSE · Class 10 · Mathematics · Surface Areas and VolumesThe curved surface area of a right circular cone of radius $r$ and slant height $l$ is:
Step-by-Step Solution
The curved surface area of a cone is given by the formula $\pi r l$.
Detailed Options Breakdown
Option : $2\pi r l$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Surface Areas and Volumes.
Option 1: $\pi r l$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $\pi r(r + l)$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Surface Areas and Volumes.
Option 3: $$\frac{1}{3}\pi r^2 h$$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Surface Areas and Volumes.
💡 Study Guide: This question tests core syllabus concepts from Surface Areas and Volumes. For formulas, key summaries, and mock exam reference guides, read the full Surface Areas and Volumes Revision Notes.