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Byju's Answer
Standard XII
Chemistry
Idea of Hybridisation
AA1'BB1' CC...
Question
A
A
1
′
B
B
1
′
C
C
1
are the medians of triangle ABC whose centroid is G, if points
A
1
,
C
1
′
G
and
B
1
are concylic, then
A
2
b
2
=
a
2
+
c
2
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B
2
c
2
=
a
2
+
b
2
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C
2
a
2
=
a
2
+
c
2
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D
None of these
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Solution
The correct option is
B
2
a
2
=
a
2
+
c
2
As
A
A
1
,
B
B
1
and
C
C
1
are median of
△
A
B
C
whose centroid is
G
.
And as
A
1
,
C
1
G
and
B
1
are cyclonic then
c
2
,
a
2
and
b
2
are in A.P.
Thus,
2
b
2
=
a
2
+
c
2
Suggest Corrections
0
Similar questions
Q.
Assertion :
A
A
1
,
B
B
1
,
C
C
1
are the medians of triangle
A
B
C
whose centroid is
G
.If the points
A
,
C
1
,
G
and
B
are concyclic, then
c
2
,
a
2
,
b
2
are in A.P. Reason:
B
G
.
C
C
1
=
B
C
1
.
B
A
Q.
Two lines whose direction ratios are a
1
, b
1
, c
1
and a
2
, b
2
, c
2
are perpendicular, if