Q. 374.9( 21 Votes )

As observed from

Answer :

Let CD = x m, AB = 75 m

In Δ ACB,

⇒ BC = AB = 75 m

In Δ ADB,

⇒ BD = 75√3

⇒ BC + x = 75√3

⇒ 75 + x = 75√3

⇒ x = 75(√3 – 1) = 54.9 m

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