37
QuizMultiple Choice

Changing Dimensions of 3-D Figures — Cumulative exam

Question 37 • (OC27) GEO-1206310-S2-Degele-VOL7006P

The height and base radius of a cone are increased by a factor of 2 to create a similar cone. How is the slant height of the cone affected?

Answer
A
The slant height of the larger cone is equal to the slant height of the smaller cone.
B
The slant height of the larger cone is double the slant height of the smaller cone.
C
The slant height of the larger cone is 4 times the slant height of the smaller cone.
D
The slant height of the larger cone is 8 times the slant height of the smaller cone.

Explanation

The slant height of a cone is determined by its height and base radius: l = √(h² + r²). Doubling both h and r gives √((2h)² + (2r)²) = 2√(h² + r²), so the slant height also doubles. Therefore, the slant height of the larger cone is double that of the smaller cone.

AI-written and checked against the verified answer.

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