alleryएक 14 m लंबी सीढ़ी जमीन से 30° के कोण पर टिकी है। इसका शीर्ष दीवार को किस ऊँचाई पर स्पर्श करता है?
A7√3 m
B14√3 m
C7 m
D14 m
Answer & Solution
Correct answer: C. 7 m
ऊँचाई = 14 × sin 30° = 14 × 1/2 = 7 m.
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