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Byju's Answer
Standard X
Mathematics
Areas of Different Plane Figures
The area of r...
Question
The area of rhombus is 216 sq. cm. If its one diagonal is 24 cm, find l
ength of its side.
A
15 cm
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B
10 cm
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C
18 cm
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D
9 cm
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Solution
The correct option is
C
15 cm
The one diagonal
d
1
=
24
c
m
Area of rhombus=
216
s
q
.
c
m
Since,
Area of rhombus
=
1
2
×
d
1
×
d
2
⇒
216
=
1
2
×
24
×
d
2
⇒
216
=
12
×
d
2
⇒
216
12
=
d
2
⇒
d
2
=
18
c
m
Side of rhombus=
√
(
d
1
2
)
2
+
(
d
2
2
)
2
=
√
(
24
2
)
2
+
(
18
2
)
2
=
√
12
2
+
9
2
=
√
144
+
81
=
15
c
m
S
i
d
e
o
f
R
h
o
m
b
u
s
=
15
c
m
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Similar questions
Q.
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c
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Q.
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Q.
Mark (✓) against the correct answer:
Each side of a rhombus is 15 cm and the length of one of its diagonals is 24 cm. The area of the rhombus is
(a) 432 cm
2
(b) 216 cm
2
(c) 180 cm
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2