Question

the area of a square poster is 987cm square.Find the perimeter of the poster, leaving your answer correct to 1 decimal place
${cm}^{2}$

Answer 1

√987 = 31.416556145
Length of one side: 31.416556145
31.416556145 × 4 = 125.66622458
125.66622458 to 1dp: 125.7

Perimeter: 125.7cm