Question
The angle of depression of a point on the ground as seen
from the top of a tower, 65 feet high, is 45°. Find the distance of the point on the ground from the foot of the tower.Solution
Let θ be the angle of depression of the point on the ground as seen from the top of a tower, here θ = 45° Let AC be the height of the tower, here AC = 65 feet. Let the distance of the point on the ground from the foot of the tower, AB = x feet. Here, tan θ = AC/AB ⇒ tan 45° = 65/x ⇒ 1 = 65/x ⇒ x = 65 feet
Select the most appropriate option to substitute the Bold segment in the given sentence. If there is no need to substitute it, select ‘No substitutio...
Select the option that can be used as a one-word substitute for the given group of words.
 A herd or flock of animals being driven in a body
Select the ANTONYM of the given word.
FINITE
Give a single word that substitutes for the following expression:
A speech delivered without prior preparation
Select the option that can be used as a one-word substitute for the given group of words.
Many fish swimming together
In order to save money for her upcoming trip, she decided to scrimp on groceries by buying only the bare essentials and cooking all her meals at home. ...
Unanimously
Select the option that can be used as a one-word-substitute for the given group of words.
A person who studies insects:Â Â Â Â Â Â Â
...Select the option that can be used as a one-word substitute for the given group of words.
Words written on a tombstone in the memory of the pe...
Select the most appropriate option to substitute the highlighted segment. If no substitution is required select 'No substitution'.
When I was pas...
Relevant for Exams:
