Math, asked by zaheer5761, 1 year ago

from a point 100m above a lake the angle of elevation of a stationary helicopter is 30° and the angle of depression of reflection of the helicopter in the lake is 60°. find the height of the helicopter above the lake

Attachments:
arbazhaider: i Send u answer
arbazhaider: in copy written
arbazhaider: ok
arbazhaider: 50(2-√3) is height right or wrong
arbazhaider: give me answer

Answers

Answered by Arnav582002
17
2nd image is in the comment box
Attachments:
Arnav582002: srry but i cant put second image in comment box
Arnav582002: answer is 200meters
Arnav582002: we just have to equate equation 1 and 2 to find value of x
Arnav582002: then height of helicopter will be AF=x+100=200meters
Previous Question
Next Question
Similar questions
English, 7 months ago
What is interfere ?​
Math, 7 months ago
Triangle ABC is a right angled triangle at B. find C if B=17cm and A=8cm​...
Business Studies, 7 months ago
What is the minimum size of the archive file that can be uploaded to Glacier?​
Math, 1 year ago
The population of Andra Pradesh was 5.4 into 10power7 in 1998.if the population was growing at a constant rate of 2.4 percent per annum what was the population in 2008 A.D...
English, 1 year ago
gramar father said why were you so late my boy.give me the reason (Narration)...
Science, 1 year ago
What kind of things we see in our imagination?
English, 1 year ago
what is allotropic transformation?
Math, 1 year ago
75%of student in a class passed an exam if 2 more students had passed the exam 80% would have been successful how many students are there in the class...