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Byju's Answer

Standard X

Mathematics

Calculating Heights and Distances

Based on the ...

Question

Based on the above figure, which of the following is/are correct?

θ_{1}

is the angle of elevation.

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θ_{2}

is the angle of depression.

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The angle of elevation or depression is always measured from horizontal line through the point of observation.

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θ_{1}

and

θ_{2}

are always equal.

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Solution

The correct options are
A $θ_{1}$ is the angle of elevation.
B The angle of elevation or depression is always measured from horizontal line through the point of observation.
C $θ_{2}$ is the angle of depression.
D $θ_{1}$ and $θ_{2}$ are always equal.
A)This option is true.
The angle of elevation is always formed between the horizontal line and the upward line of observation.
B) This Option is also true.
The angle of depression is always formed between the horizontal line and the downward line of observation.
C)Since A and B are true, this option is also true.
D)This option is true.
The angle of elevation and the angle of depression are congruent.
The angle of elevation and the angle of depression in any scenario are always EQUAL.
One person looks UP, the other person looks DOWN, but the angles are equal alternate angles because horizontal lines are always parallel.

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