A rectangular field of area (81m*49m) is equal to the area of square field .find the length of one side of square field
"\\text{It is given that the area of a rectangle has length and width } \n\n\\\\\n81 \\text{ and } 49 \\text{ respectively } \n\\\\\nA_{rectangle}=L\\times W=81 \\times 49=A_{square}\n\\\\\n\\text{Recall that } A_{square}=L^2=81 \\times 49\n\\\\\n\\implies L=\\sqrt{81 \\times 49}=9 \\times7=63 \\,(m)\n\\\\\n\\therefore \\text{The lenght of one side of square field is } 63 \\, m."
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