A circularr garden with diameter o f20 meters is surrounded by a walkway of width 1 meter. What is the area of the walkway?

A circularr garden with diameter o \(f^{20}\) meters is surrounded by a walkway of width 1 meter. What is the area of the walkway? ?

Created: 1 year ago | Updated: 1 week ago | Created By:

samia noon

21 m 2

None of these

41 πm 2

21 πm 2

0 9

Institution: Bangladesh House Building Finance Corporation (BHBFC) Exam: Bangladesh House Building Finance Corporation (BHBFC) - Senior Officer - 20.10.2017 ||
Topic: Mathematics (সাধারণ গণিত) Subject: Mathematics (সাধারণ গণিত)

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A circularr garden with diameter o \(f^{20}\) meters is surrounded by a walkway of width 1 meter. What is the area of the walkway? ?

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প্রাণীবিজ্ঞানের যে শাখায় মৎস্য চাষ সম্বন্ধে আলোচনা করা হয় তাকে-

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