Aptitude - Height and Distance - Discussion
Discussion Forum : Height and Distance - General Questions (Q.No. 5)
5.
From a point P on a level ground, the angle of elevation of the top tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is:
Answer: Option
Explanation:
Let AB be the tower.
Then, 
APB = 30° and AB = 100 m.
| AB | = tan 30° = | 1 |
| AP | 3 |
 AP |
= (AB x 3) m |
| = 1003 m | |
| = (100 x 1.73) m | |
| = 173 m. |
Discussion:
26 comments Page 1 of 3.
Bala murali said:
10 months ago
Here, tan 30 is 1/√3.
Then how will 100/√3 become 1.73?
Then how will 100/√3 become 1.73?
(2)
Sagar said:
1 year ago
1.73 how?
Vivek Sunny said:
2 years ago
Approach 1*1= 1,
1.5*1.5=2.25,
2*2=4,
so.
√ 3 is between 1.5 and 2 so 1.73 is correct.
1.5*1.5=2.25,
2*2=4,
so.
√ 3 is between 1.5 and 2 so 1.73 is correct.
Rutuja said:
2 years ago
how Root 3 is calculated as 1.73?
Please anyone explain it.
Please anyone explain it.
Vikas said:
2 years ago
Why tan only?
Because we find the height of the tower that we get tan30 because;
tan30 = perpendicular/base.
Because we find the height of the tower that we get tan30 because;
tan30 = perpendicular/base.
Mounika said:
2 years ago
Why tan only? Please explain.
Nissipravalika said:
3 years ago
Hi,
How to calculate √3 value?
Anyone can explain please?
How to calculate √3 value?
Anyone can explain please?
Gitanshu said:
3 years ago
How to divide 34.64/1.732 without calc. Is there any simple trick?
Priya said:
4 years ago
Thank you so much @Sarthak.
You explained it neat and clear.
You explained it neat and clear.
Vansh giroh said:
4 years ago
Here AP needs to find so using the AB value Tan 30 is taken and root 3 is 1.73. So the answer will be 173m.
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