SOLUTION: http://i.imgur.com/fA1v6fX.jpg
In the xy-plane above, line l and m are parallel and intersect the x-axis at x=a and x=b respectively. if a+b=8, what is the value of a ?
A) 1.5
B
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Question 1043406: http://i.imgur.com/fA1v6fX.jpg
In the xy-plane above, line l and m are parallel and intersect the x-axis at x=a and x=b respectively. if a+b=8, what is the value of a ?
A) 1.5
B) 2
C) 2.5
D) 3
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
By similarity of triangles, .
===> b = 3a ===> a + b = a + 3a = 4a = 8 ===> a = 2.
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