and 
are the vertices of a 
. The incircle of the triangle has the equation
a)
b)
c)
d)
and are the vertices of a . The incircle of the triangle has the equation
a)
b)
c)
d)
Question ID - 56705 | SaraNextGen Top Answer
and are the vertices of a . The incircle of the triangle has the equation
a)
b)
c)
d)
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a) |
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b) |
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c) |
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1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
.png)
The triangle is evidently isosceles and therefore the median through 
is the angle bisector of 
The equation of the angle bisector is 
and in centre 
where 
is positive
Equation of 
is 
or 
and equation of 
is 
The length of the perpendicular from 
to 
and 
are equal
Centre is 
and radius 
The equation of the circle is 
127 votes
Answer Link
127