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CDS Model Paper 4 Mathematics
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© examsnet.com
Question : 50
Total: 100
If the diagonal of a square is doubled, then its area will be
three times
four times
same
none of these
Validate
Solution:
Diagonal of a square
(
d
)
=
√
2
×
side of square (a).
d
=
√
2
a
⇒
a
=
d
√
2
Area of square
⇒
a
2
=
d
2
2
Now, diagonal gests doubled
a
=
(
2
d
)
√
2
Area of square
=
(
2
u
d
√
2
)
2
=
4
(
d
2
2
)
d
2
2
is area of square
Therefore, Area will be four temes.
© examsnet.com
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