GMAT管卫东GWD 2套 数学部分第6题 求牛人给我讲解一下
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GMAT管卫东GWD 2套 数学部分第6题 求牛人给我讲解一下
图是一个半圆 说是一个隧道的横截面那道 半圆的直径是20 正确答案是B 但是我觉得应该是A……
Q6:
The figure above shows the dimensions of a semicircular cross section of a one-way tunnel.The single traffic lane is 12 feet wide and is equidistant from the sides of the tunnel.If vehicles must clear the top of the tunnel by at least ½ foot when they are inside the traffic lane,what should be the limit on the height of vehicles that are allowed to use the tunnel?
A.5½ ft
B.7½ ft
C.8 ½ ft
D.9½ ft
E.10 ft
图是一个半圆 说是一个隧道的横截面那道 半圆的直径是20 正确答案是B 但是我觉得应该是A……
Q6:
The figure above shows the dimensions of a semicircular cross section of a one-way tunnel.The single traffic lane is 12 feet wide and is equidistant from the sides of the tunnel.If vehicles must clear the top of the tunnel by at least ½ foot when they are inside the traffic lane,what should be the limit on the height of vehicles that are allowed to use the tunnel?
A.5½ ft
B.7½ ft
C.8 ½ ft
D.9½ ft
E.10 ft
![GMAT管卫东GWD 2套 数学部分第6题 求牛人给我讲解一下](/uploads/image/z/6384261-21-1.jpg?t=GMAT%E7%AE%A1%E5%8D%AB%E4%B8%9CGWD+2%E5%A5%97+%E6%95%B0%E5%AD%A6%E9%83%A8%E5%88%86%E7%AC%AC6%E9%A2%98+%E6%B1%82%E7%89%9B%E4%BA%BA%E7%BB%99%E6%88%91%E8%AE%B2%E8%A7%A3%E4%B8%80%E4%B8%8B)
你怎么能算出5.5能 我很费解![](http://img.wesiedu.com/upload/3/eb/3eb434a5a74bb3c9531831958915f4c1.jpg)
![](http://img.wesiedu.com/upload/3/eb/3eb434a5a74bb3c9531831958915f4c1.jpg)