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1. वृत्त की त्रिज्या 100% बढ़ाने पर वृत्त की परिधि व क्षेत्रफल कमश रू कितने गुना बढ़ जाएगा ?

A A. 1, 2

B B. 2, 4

C C. 2, 3

D D. 1, 3

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