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Vertices of a traingl

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Vertices of a traingl

by GmatKiss » Sat Oct 22, 2011 6:06 am
Vertices of a traingle are at (-2,1) , (3,1) & (x,y) on a coordinate plane. What is the area of the triangle ?

1) |y-1| =1
2) Angle at Vertex (x,y) = 90 degrees
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by pemdas » Sat Oct 22, 2011 10:22 am
by sketching and looking up we see neither st. alone is sufficient, combined make three sides 3,4,5 and the area is (3*4)/2=6

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GmatKiss wrote:Vertices of a traingle are at (-2,1) , (3,1) & (x,y) on a coordinate plane. What is the area of the triangle ?

1) |y-1| =1
2) Angle at Vertex (x,y) = 90 degrees
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