gwd 11 3题

aster1990

The sides of a square region, measured to the nearest centimeters, are 6

centimeters long. The least possible value of the actual area of the square

region is ?

6cm难道不是就在说边长么？

luoye1

对，说的就是边长，但是measured to the nearest centimeters，所以这个边长范围在5.5－6.5之间。所以The least possible value of the actual area of the square region 应该是5.5^2

aster1990

thanks !!!!