Question

21. A blacksmith has a rectangular iron sheet 10 ft long. He has to cut out 7 circular discs from this sheet. What is the minimum possible width of the iron sheet if the radius of each disc is 1 ft?

Answer 1

Area of 7 circles is 22 sq ft..so the rectangle should have minimum area 22 sq ft.so the minimum possible width of the rectangle will be 3 ft

Answer 2

Answer:

Minimum Width = $2 + \sqrt{3} \ ft$

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