alleryयदि किसी वृत्त की त्रिज्या तीन गुना कर दी जाए, तो उसकी परिधि कितनी हो जाएगी?
Aदोगुनी
Bछह गुना
Cनौ गुना
Dतीन गुना
Answer & Solution
Correct answer: D. तीन गुना
परिधि त्रिज्या के सीधे समानुपाती होती है, इसलिए यह भी तीन गुना हो जाएगी।
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