Please solve this question on straight lines.

Asked by karansawnani | 27th Oct, 2009, 05:49: PM

Expert Answer:

In the parallelogram ABCD,

Slope of the ldiagonal AC (m1) = (0-2)/ (4-0) = -1/2

Slope of the diagonal BD  (m2) =  (3 - (-1))/ (2 - 2 ) = ∞

That means diagonal BD is parallel to the y axis.

Now, m1 x m2 = -1

(-1/2) x tanθ = -1

So, tan θ = 2

Hence Proved.

Answered by  | 4th Nov, 2009, 03:46: PM

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