The altitude of certain triangular sail is 2 meters greater in length than its base.The area of the face of the sail is 24 quare meters.问 The length of te base of the sail 与 4 meters 哪个大?这是GRE绿皮书section8的第40题.
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![The altitude of certain triangular sail is 2 meters greater in length than its base.The area of the face of the sail is 24 quare meters.问 The length of te base of the sail 与 4 meters 哪个大?这是GRE绿皮书section8的第40题.](/uploads/image/z/5308392-48-2.jpg?t=The+altitude+of+certain+triangular+sail+is+2+meters+greater+in+length+than+its+base.The+area+of+the+face+of+the+sail+is+24+quare+meters.%E9%97%AE+The+length+of+te+base+of+the+sail+%E4%B8%8E+4+meters+%E5%93%AA%E4%B8%AA%E5%A4%A7%3F%E8%BF%99%E6%98%AFGRE%E7%BB%BF%E7%9A%AE%E4%B9%A6section8%E7%9A%84%E7%AC%AC40%E9%A2%98.)
The altitude of certain triangular sail is 2 meters greater in length than its base.The area of the face of the sail is 24 quare meters.问 The length of te base of the sail 与 4 meters 哪个大?这是GRE绿皮书section8的第40题.
The altitude of certain triangular sail is 2 meters greater in length than its base.The area of the face of the sail is 24 quare meters.
问 The length of te base of the sail 与 4 meters 哪个大?
这是GRE绿皮书section8的第40题.
The altitude of certain triangular sail is 2 meters greater in length than its base.The area of the face of the sail is 24 quare meters.问 The length of te base of the sail 与 4 meters 哪个大?这是GRE绿皮书section8的第40题.
Set the base of the sail is b,so the length is b+2,we can get a function as:
b(b+2)/2=24
change this function into simple standard:
b²+2b-48=0
(b-6)(b+8)=0
We can got two roots of the function:6 and -8,but the base of a triangle shouldn't be a minus number,so
b=6
So it's concluded that the base of the sail is 6 meters and bigger than 4 meters...
你是考GRE的,如果我写的有什么问题,请包涵哈~
suppose the length of te base of the sail is x
then 0.5*(x+2)*x=24 x=6 meters
so the length of te base of the sail is 2 meters greater than 4 meters
好吧,其实GRE很简单。
三角形高比底长2M,面积是24M方,所以可知高为8,底为6,所以底比4M大。
呵呵,对不对?
oh god....thankfully i ain't need to take that stupid fking exam.....looks fucking horrible....and yeah....horrible....like some super gorgeous chick with a huge black dick in her skirt.....
good luck with that, nerd boy....
btw, is GRE short for "Greatest Randies Ever"?