Math, asked by ripudaaman242, 1 year ago

The angle of elevation of a cloud from a point 60m above the surface of the water of a lake is 30 degree and the angle of depression of its shadow in water of lake is 60 degree. Find the height of the cloud from the surface of water.

Answers

Answered by deepak8111

130m height of thesurface of water

ripudaaman242: Wrong 120m

deepak8111: sorry it is my mistake

Answered by csanjali1090

Answer:

Step-by-step explanation:

Attachments:

csanjali1090: I hope it's clear,well the image is a bit unclear,but I hope u can read it.

ripudaaman242: Thanks

csanjali1090: And don't forget to add the shadow of the 60m pole,cause that's where we all make the mistake, even I made the same mistake in the first try.,That's why it became h+120

csanjali1090: And a small mistake that I found out in my answer is A'B = h+120 it's not h+60, I forgot to change it

ripudaaman242: Why h+120

csanjali1090: Because, the length of the shadow is h+60 therefore when we add a 60to it, it become h+120

ripudaaman242: Ok

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