RRB Junior Engineer Stage 1 Model Papers 3

Question : 4 of 100

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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

Solution:

∴ ∠BAO

= 30°

∠ABO = 60°

∴ \sin 60°={OA}/{OB}

⇒√3/2×8=OA

∴OA=4√3

∴AC=8√3 \metre

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