alleryएक 10 m लंबी सीढ़ी समतल जमीन के साथ 60° के कोण पर झुकी है। यह दीवार पर कितनी ऊँचाई तक पहुँचती है?
A5√2 m
B5√3 m
C10 m
D5 m
Answer & Solution
Correct answer: B. 5√3 m
ऊँचाई = 10 × sin 60° = 10 × √3/2 = 5√3 m.
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