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Q:

यदि एक वृत्त का क्षेत्रफल 154 मी2 है, तो इसकी त्रिज्या होगी- 

  • 1
    7 cm.
  • 2
    5 cm
  • 3
    14 cm.
  • 4
    3.5 cm
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Answer : 1. "7 cm."

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