选择题
2016 AMC 8 Problem 22: Bat Wings Area
Rectangle DEFA is a 3 × 4 rectangle with DC = CB = BA = 1. What is the area of the “bat wings” shaded region?
2016 AMC 8 第 22 题：蝙蝠翅膀区域
矩形 DEFA 是一个 3 × 4 矩形，DC = CB = BA = 1。“蝙蝠翅膀”阴影区域的面积是多少
A.
2
B.
2 1/2
C.
3
D.
3 1/2
E.
4