alleryA cone can be generated by rotating a triangle that is:
AObtuse-angled
BIsosceles
CRight-angled
DEquilateral
Answer & Solution
Correct answer: C. Right-angled
1. One perpendicular side is fixed along a string.
2. The triangle is spun around it.
3. The triangle used is right-angled.
_Source: syllabus Mathematics, Chapter 13, Surface Areas and Volumes._
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