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UPSC CDS 1 2020 Math Paper
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© examsnet.com
Question : 66
Total: 100
What is the area of the triangle having sides lengths
y
z
+
z
x
,
z
x
+
x
y
,
x
y
+
y
z
?
(
x
+
y
+
z
)
2
x
y
z
√
x
y
z
x
+
y
+
z
√
x
y
+
y
z
+
z
x
√
x
y
+
y
z
+
z
x
x
y
z
Validate
Solution:
👈: Video Solution
S
=
x
y
+
y
z
+
z
x
Area
=
√
S
(
S
−
a
)
(
S
−
b
)
(
S
−
c
)
=
√
(
x
y
+
y
z
+
z
x
)
(
x
y
)
(
y
z
)
(
z
x
)
=
√
x
y
+
y
z
+
z
x
© examsnet.com
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