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UPSC CDS Math Triangles Questions
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© examsnet.com
Question : 46
Total: 68
In a triangle ABC if
A
−
B
=
π
2
,
then C+2B is equal to
[2016 CDS-I]
2
π
3
3
π
4
π
π
2
Validate
Solution:
In ΔABC,
A
−
B
=
π
2
....(1)
Also,
A
+
B
+
C
=
π
....(2)
Subtracting (1) from (2), we get
(
A
+
B
+
C
)
−
(
A
−
B
)
=
π
−
π
2
⇒
C
+
2
B
=
π
2
© examsnet.com
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