Published by:
CGP EDU Academic Team
Published on: August 14, 2026
ABC is an equilateral traing such that the vertices B & C on two parallel lines at a distance 6 If A lies between the parallel lines at a distance 4 from one of them then the length of a side of the equilateral triangle is
A
8
B
C
D
None
Text Solution
Verified by ExpertsThe correct answer is:
C
Δ ABD cos θ = 
…(1)
Δ AEC cos (120 0 – θ ) = 
…(2)
cos 120 0 cos θ + sin120 0 sin θ = 
– 
cos θ + 
sin θ = 
sin θ = 
⇒ 
(1 – cos 2 θ ) = 
⇒ 
a 2 = 
⇒ a = 
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