A98ft extension ladder rests the top of a hook and ladder truck with its base 11 from the ground. the angle of elevation 73 degrees. how high up on the building is the ladder?

∴ The height of the end of the ladder is

Step-by-step explanation:

Given,

The length feet and which is touch feet from the base and the angle of elevation degrees.

From the figure ;

feet , and degree

Now from figure we have,

Plug value in above equation,

 ( from figure )

Then,

Then the height of the end of the ladder is

the answer to the expression is 83