Question

Shazli took a wire of length 44 cm and bent it into the shape of a circle. Find the radius of that circle. Also find its area. If the same wire is bent into the shape of a square, what will be the length of each of its sides? Which figure encloses more area, the circle or the square? (Take π = 22/7)

Answer 1

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Answer 2

Answer:

2πr = 44    

  2 ×22/7×r = 44 44/7 ×r

                   = 44r

                    = 44 ÷447r

                     = 44 ×744

                       = 7 cm

Area = TT 2

          = 227×7×7

           = 154 cm 2

Perimeter of square = 4S

                                    4S  = 44

                                    S = 44/4     =11cm

Area of square = S2= 112=  11×11= 121 cm2