The area of a square road around a $4$-m-wide road inside it equals $1$ hectare. The side of the field (outer) is —

Question

Accepted Answer

$629$ m

Answer

$620$ m

Answer

$625$ m

Answer

$640$ m

The area of a square road around a 444-m-wide road inside it equals 111 hectare. The side of the field (outer) is —