A 2 feet wide circular path is created around a circular field with a radious of r feet. Find the value of r, in feet, if the area of the field including the path is twice that of the field alone?

গণিত Geometry 07 Oct, 2020

প্রশ্ন A 2 feet wide circular path is created around a circular field with a radious of r feet. Find the value of r, in feet, if the area of the field including the path is twice that of the field alone?

  • ক.
    2 + 2√2
  • খ.
    4√2
  • গ.
    6√2
  • ঘ.
    2√2

সঠিক উত্তর

2 + 2√2

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