Question

A woman walks 5 rounds along the border of a square field of area 49². Find the total distance she walks in m.​

Answer 1

140m

Explanation:

perimeter of a square with area 49 is 7×4=28, 28 × 5 rounds = 140m

Answer 2

You need to estimate the square root of 200 ft². Rewrite 200 as 2 x 100, then square root of (2*100) is:

10*sqrt(2). The sqrt(2) = 1.414, so the length of each side of the square will be 10*1.414 = 14.14 ft or about 14 ft.