C-10-Q157mediumsingle_mcq

From a building, the angle of depression of a car on level ground is $45^\circ$ . The horizontal distance of the car from the foot equals—

athe height of the building
btwice the height
chalf the height
dzero

ব্যাখ্যা

With a $45^\circ$ angle of depression, the right triangle is isosceles, so $\tan 45^\circ = 1$ . This makes the horizontal distance equal to the building's height.

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এই অধ্যায়ের আরও প্রশ্ন

C-10-Q158From the same observation point on the ground, the angle of elevation of a fixed tower top is determined uniqu
C-10-Q159In a right triangle with one acute angle , is maximum at
C-10-Q160Trigonometric ratios are independent of the size of a right triangle because of the—
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C-10-Q154equals—
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C-10-Q156The shadow of a vertical pole on level ground is longest when the sun's elevation is—

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

From a building, the angle of depression of a car on level ground is 45∘45^\circ45∘. The horizontal distance of the car from the foot equals—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

From a building, the angle of depression of a car on level ground is $45^\circ$ . The horizontal distance of the car from the foot equals—