Published by:
CGP EDU Academic Team
Published on: August 13, 2026
In an isosceles triangle ABC , the coordinates of the point B and C on the base BC are respectively (1, 2) and (2, 1). If the equation of the line AB is 
, then the equation of the line AC is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Slope of BC = 
, 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
.
But slope of AB is 2; 
(Here m is the gradient of the line AC )
Equation of the line AC is 
⇒ ⇒ 
or 
.
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