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Byju's Answer
Standard VIII
Mathematics
Area of a Rhombus
If the length...
Question
If the lengths of two diagonals of a rhombus are 15 cm and 41.6 cm, then find its area.
A
156
c
m
2
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B
312
c
m
2
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C
624
c
m
2
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D
1248
c
m
2
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Solution
The correct option is
B
312
c
m
2
Given,
Length of one diagonal = 15 cm
Length of other diagonal = 41.6 cm
We know that,
Area of a rhombus
=
1
2
×
(
p
r
o
d
u
c
t
o
f
d
i
a
g
o
n
a
l
s
)
=
1
2
×
(15
×
41.6)
=
1
2
×
(
15
)
×
416
10
=
1
2
×
(
3
)
×
416
2
=
1
2
×
(624)
= 312
c
m
2
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0
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Q.
Lengths of the diagonals of a rhombus are 15 cm and 24 cm, find its area.
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Lengths of the diagonals of a rhombus are 16.5 cm and 14.2 cm, find its area.
Q.
If the lengths of two diagonals of a rhombus are 15 cm and 41.6 cm, then find its area.
Q.
If the sum of diagonals of a rhombus is
10
cm and its area is
12
c
m
2
Then the length of its diagonals are :
Q.
Mark (✓) against the correct answer
The lengths of the diagonals of a rhombus are 18 cm and 15 cm. The area of the rhombus is
(a) 270 cm
2
(b) 135 cm
2
(c) 90 cm
2
(d) 180 cm
2
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