Question

6. A wire is in the shape of a rectangle. Its length is 42.7 m and breadth is 21.8 m. If the same wire is re-bent in the shape of a square, what will be the measure of the side of the square? RRB NTPC (Phase I) 2016 (1) 16.125 (2) 32.25 (3) 11.35 (4) 22.70

11th - 12th Class

Maths

Solution

378

4.0 (1 ratings)

6. (2) Length of wire = Perimeter of rectangle [ begin{array}{l} =2(42.7+21.8)=2 times 64.5 =129.0 mathrm{m} end{array} ] Again, perimeter of square = Length of wire [ begin{aligned} 4 x operatorname{side} &=129 therefore quad & text { side }=frac{129}{4}=32.25 mathrm{m} end{aligned} ]