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RRB Junior Engineer Stage 1 Model Papers 3
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© examsnet.com
Question : 4
Total: 100
One of the four angles of a rhombus is 60°. If the length of each side of the rhombus is, 8 cm, then the length of the longer diagonal is
8
√
3
cm
8cm
4
√
3
cm
8
√
3
cm
Validate
Solution:
∴
∠
B
A
O
= 30°
∠
A
B
O
=
60
°
∴
sin
60
°
=
O
A
O
B
⇒
√
3
2
×
8
=
O
A
∴
O
A
=
4
√
3
∴
A
C
=
8
√
3
metre
© examsnet.com
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