C-10-Q027mediumsingle_mcq

If the angle of depression of a point from the top of a tower is $30^\circ$ , the angle of elevation of the tower top from that point is—

a $60^\circ$
b $30^\circ$
c $90^\circ$
d $45^\circ$

ব্যাখ্যা

Because the horizontal lines at the two points are parallel and the line of sight is a transversal, the angle of elevation equals the angle of depression as alternate angles, giving $30^\circ$ .

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এই অধ্যায়ের আরও প্রশ্ন

C-10-Q028As an observed point on the ground moves further from the foot of a tall building, the angle of depression fro
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C-10-Q036

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C-10-Q037

Chapter 10: Distance and Elevation — সব প্রশ্ন দেখুন (160টি) →

If the angle of depression of a point from the top of a tower is 30∘30^\circ30∘, the angle of elevation of the tower top from that point is—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

If the angle of depression of a point from the top of a tower is $30^\circ$ , the angle of elevation of the tower top from that point is—