ഒരു വൃത്തത്തിന്റെ വ്യാസം ഇരട്ടിയാക്കിയാൽ പരപ്പളവ് എത്ര മടങ്ങ് വർദ്ധിക്കും ?
A2 മടങ്ങ്
B4 മടങ്ങ്
Cവ്യത്യാസമില്ല
D8 മടങ്ങ്
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