Question

A vertical pole 10m long casts a shadow 10root 3 long.at the same time tower casts a shadow 90m long.determine the height of the wall.

Answer 1

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Answer 2

Answer:

The height of the wall is 30√3m.

Step-by-step explanation:

Given : A vertical pole 10m long casts a shadow 10√3 long.at the same time tower casts a shadow 90m long.

To find : Determine the height of the wall?

Solution :

According to question,

Angle of elevation is

tan x=10/10√3=1/√3=30°

The ratio will be same for tower also.

The tower will be √3 times smaller than its shadow.

h=90/√3

h=30√3m is height of the wall.

Therefore, The height of the wall is 30√3m.