选择题
2007 AMC 8 Problem 22: Lemming Distance Average
A lemming sits at a corner of a square with side length 10 meters. The lemming runs 6.2 meters along a diagonal toward the opposite corner. It stops, makes a 90° right turn and runs 2 more meters. A scientist measures the shortest distance between the lemming and each side of the square. What is the average of these four distances in meters?
A.
2
B.
4.5
C.
5
D.
6.2
E.
7