Mathematics
NULL
Medium
Question
The diameters of two spheres are in the ratio 1 : 2. What is the ratio of their surface areas?
A
1 : 2
B
1 : 4
✓ Official correct answer
C
1 : 8
D
1 : 16
Community credibility
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A
1 : 2
No member explanations yet for this option.
B
1 : 4
No member explanations yet for this option.
C
1 : 8
No member explanations yet for this option.
D
1 : 16
No member explanations yet for this option.
Explanation
Surface area ratio = 1² : 2² = 1 : 4.