Mathematics
NULL
Medium
Question
If the diameter of a circle is increased by 100%, its area is increased by _________?
A
100%
B
200%
C
300%
✓ Official correct answer
D
400%
Community credibility
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A
100%
No member explanations yet for this option.
B
200%
No member explanations yet for this option.
C
300%
No member explanations yet for this option.
D
400%
No member explanations yet for this option.
Explanation
Doubling the diameter doubles the radius, so area becomes 4 times → increase of 300%.