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The angles of elevation of the top of a ...

The angles of elevation of the top of a tree 220 meters high from two points lie on the same plane are `30^@` and `45^@`. What is the distance (in metres) between the two points?
220 मीटर ऊँचे एक वृक्ष के दी बिंदुओ का समान तल पर उन्नयन कोण `30^@` तथा `45^@` हैं। दो बिंदुओ के मध्य दूरी (मीटर में) क्या है?

A

193.22

B

144.04

C

176.42

D

161.05

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Height of a tower is 120 metres. The angle of elevation of the top of tower from a point B is 75^@ .Point B is on the ground level. What is the distance (in metres)of point B from the base of tower? एक भीनार की ऊँचाई 120 मीटर है। बिंदु B से मीनार की चोटी का उन्नयन कोण 75^@ है। बिंदु B जमीन की सतह पर है। मीनार के आधार से बिंदु B की दूरी (मीटर में) क्या है?

The distance between the tops of two building of 38 metres and 58 metres high is 52 metres. What will be the distance (in metres) between two buildings ? दो इमारत 38 मीटर तथा 58 मीटर ऊँची है, के शीर्षो के मध्य दूरी 52 मीटर है। दोनो इमारतो के मध्य की दूरी (मीटर में) क्या होगी?

From the top of 120 m high lighthouse, the angle of depression of two ships on opposite side of the base of the lighthouse is 30^@ and 60^@ . What is the distance between the ships? (rounded off) 120 मी ऊँची लाइट हाउस के शीर्ष से इसके आधार के विपरीत दिशाओं में दो जहाज़ो का अवनमन कोण 30^@ और 60^@ है | जहाज़ों के बीच की दूरी ज्ञात करें |

A flag of height 4 metres is standing on the top of a building. The angle of elevation of the top of the flag from a point X is 45^@ and the angle of elevation of the top of building from X is 30^@ .Point X is on the ground level. What is the height (in metres) of the building? एक झंडा जिसकी ऊँचाई 4 मीटर है, इस इमारत की चोटी पर खड़ा हुआ है। बिंदु X से झंडे की चोटी का उन्नयन कोण 45^@ है तथा X से इमारत की चोटी का उन्नयन कोण 30^@ है। बिंदु X जमीन की सतह पर है। इमारत की ऊँचाई (मीटर में) क्या है?

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From the top of a hill 240m high the angle of depression of the top and of the bottom of a pole are 30^@ and 60^@ , respectively. The difference (in m) between the height of the pole and its distance from the hill is : एक पहाड़ी के शीर्ष जो 240 मीटर ऊँचा है| से एक खम्भे के ऊपर और निचे के तल पर कोण क्रमश 30^@ और 60^@ है। खम्भे की ऊँचाई और पहाड़ी से उसकी दूरी के बीच का अंतर (m) है

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CHAMPION PUBLICATION-2017 TIER-II PAPER(11)-EXERCISE
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