Some Applications of Trigonometry test

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Some Applications of Trigonometry test - 5

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Question 1
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The ___________ of an object can be determined with the help of trigonometric ratios.

A
shape

B
height

C
weight

D
None of these

Solution

The height of an object can be determined with the help of trigonometric ratios if angle of elevation /depression and one side is known.
Question 2
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The _____________ is the line drawn from the eye of an observer to the point in the object viewed by the observer.

A
Horizontal line

B
line of sight

C
Vertical line

D
None of these

Solution

The line of sight is the imaginary line drawn from the eye of an observer to the point in the object viewed by the observer. The angle between the line of sight and the ground is called angle of elevation
Question 3
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The ___________ of an object is the angle formed by the line of sight with the horizontal when the object is above the horizontal level.

A
angle of projection

B
angle of depression

C
angle of elevation

D
none of these

Solution

The angle of elevation of an object is the angle formed by the line of sight with the horizontal when the object is above the horizontal level.