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NIFT UG 2013 Question Paper with solutions
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© examsnet.com
Question : 48
Total: 150
a square of which the diagonal is 15 metre?
16.11 m
18 m
21.11 m
10.22 m
Validate
Solution:
Let side length of equilateral triangle = 5
Area of equilateral triangle
=
√
3
2
(
s
i
d
e
)
2
According to the question,
√
3
2
(
side
)
2
=
(
15
)
2
√
3
2
(
s
)
2
=
225
(
s
)
2
=
225
×
2
√
3
⇒
s
=
16.11
m
© examsnet.com
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