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प्रश्न
The tops of two poles of heights 20 m and 14 m are connected by a wire. If the wire makes an angle of 30° with the horizontal, then the length of the wire is ____________.
पर्याय
8 m
10 m
12 m
14 m
MCQ
रिकाम्या जागा भरा
उत्तर
The tops of two poles of heights 20 m and 14 m are connected by a wire. If the wire makes an angle of 30° with the horizontal, then the length of the wire is 12 m.
Explanation:
`"AE"/"AC" = "sin" 30^circ`
`=> 6/"AC" = 1/2`
`=> "AC" = 12 "m"`
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