# The tallest freestanding structure in the world is 553-m tall CN tower in toronto, ontario. Suppose that at a certain time of day it casts a shadow 1100m long on the ground. What is the angle of elevation of the sun at the time of day?

##### 2 Answers

Jul 30, 2016

#### Explanation:

Call a the angle of elevation of the sun

Calculator gives:

Jul 30, 2016

#### Explanation:

The angle of elevation is always between the horizontal and the line of sight looking upwards. A common error is to place it at the top of a triangle.

In this case the angle of elevation is on the ground, from the end of the shadow of the building looking up towards the top of the building.

Draw a sketch and fill in the lengths of the opposite side (553m) and the adjacent side (1100m) , the right -angle at the base of the building and the angle of elevation ,