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27. Straight Line in Space
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Q16 of 112 Page 1151

Find the angle between the lines and

Given : the lines and


To find : angle between the lines


Formula used : If the lines are a + b + c + λ(p + q + r) and d + e + f +


λ(l + m + n) then the angle between the lines ‘θ’ is given by


θ =


the lines and


Here p = 3 , q = 2 , r = 6 and l = 1 , m = 2 , n = 2


θ = =


θ = = =


θ =


The angle between the lines and is


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Show that the lines and are at right angles.

Questions · 112
27. Straight Line in Space
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