1 सड़क मार्ग पर खड़ा होकर कोई बच्चा चोटी की ओर देख रहा हो तो उसकी दृष्टि एव
चोटी के बीच बने कोणको कहेगे।
ख. अवनमन कोण
A student standing on road saw towards the peak. The angle between his eye and peach will
Angle of elevation
(ii) Angle of depression
Answers
Answer:
It is a bicameral legislature composed of the President of India and the two houses: the Rajya Sabha (Council of States) and the Lok Sabha (House of the People). The President in his role as head of legislature has full powers to summon and prorogue either house of Parliament or to dissolve Lok Sabha.
Answer:
अवसाद का कोण ऊंचाई के कोण के विपरीत परिदृश्य है। इस मामले में, पर्यवेक्षक ऊंचाई पर खड़ा है और ऑब्जर्वर की दृष्टि की रेखा के नीचे ऑब्जेक्ट रखा गया है। हम इसे इस तरह परिभाषित कर सकते हैं जैसे कि वस्तु को पर्यवेक्षक के आंखों के स्तर से नीचे रखा जाता है, तो क्षैतिज रेखा और पर्यवेक्षक की दृष्टि के बीच के कोणों को अवसाद का कोण कहा जाता है ।
अवसाद का कोणAngle of Elevation and Depression Comparison
The angle of depression is just the opposite scenario of the angle of elevation. In this case, the observer is standing at height and the object is kept below the line of sight of the observer. We can define it as if the object is kept below the eye level of the observer, then the angles formed between the horizontal line and the observer’s line of sight is called the angle of depression.
angle of depression
The formula of the angle formed here is given by;
tangent of angle of depression = Opposite side/adjacent side
Angle of Elevation Examples
Question 1: Find the value of θ in the given figure.
Angle of Elevation Example
Solution:
Given:
In the given triangle ABC, AC = 335 ft, BC = 249 ft
To find ∠A = θ
tan θ = Opposite side/ Adjacent side
tan θ = BC / AC
tan θ = 249/ 335
tan θ = 0.74
Therefore, θ = tan-1 (0.74) = 36
Hence, the value of θ = 36 degrees.
Question 2: If the angle of inclination formed by an observer to an object, kept above a tower, is 45 degrees. Find the horizontal distance between the observer and the height of the tower is 150 ft.
Solution: Given, θ = 45
Height of tower = 150 ft.
To find: the distance between the observer and base of the tower.
By the formula, we know,
tan θ = Height of the tower/Distance between observer and tower
tan 45 = 150/D
since tan 45 = 1
Therefore,
1 = 150/D
D = 150 ft.
Hence, the distance between the observer and tower is equal to the height of the tower.
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