Two spheres have radii of 3 cm and 6 cm respectively. How many times greater is the surface area of the larger sphere compared to the smaller sphere?
Options
A
2 times
B
4 times
C
6 times
D
8 times
Answer & Analysis
Answer
B
Analysis
Question Analysis
This question tests understanding that the surface area scales with the square of the radius.
Key Concept Explanation
Since the surface area is proportional to (), the ratio of the surface areas of two spheres is the square of the ratio of their radii (
Want More Practice Questions?
Access thousands of practice questions with detailed explanations on Scholardog.