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A ladder is placed against a wall such t...

A ladder is placed against a wall such that it just reaches the top of the wall.The foot of the ladder is at a distance of 5 metres from the wall. The angle of elevation of the top of the wall from the base of the ladder is `15^@`. What is the length (in metres) of the ladder?
एक सीढ़ी दीवार के सहारे इस प्रकार खड़ी है कि वह दीवार की चोटी तक पहुँचाती है। सीढ़ी का आधार दीवार से 5 मीटर की दूरी पर है। सीढ़ी के आधार से दीवार की चोटी का उन्नयन कोण `15^@` है। सीढ़ी को लंबाई (मीटर में) क्या है?

A

`5sqrt(6)-5sqrt(3)`

B

`5sqrt(6)-5sqrt(2)`

C

`5sqrt(2)-1`

D

`5sqrt(3)+5sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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