Question

Please help me!!!!! I need help!!!!!!!!!

The picture below shows a portion of a river dam:

A right angle triangle is shown with the measure of the acute angle at the tip equal to 65 degrees and length of base equal to

Which of the following can be used to calculate the height of the river dam?

145 divided by tan 65 degrees
145 cos 65°
145 divided by cos 65 degrees
145 tan 65°

Answer 1

145 divided by tan 65

Explanation:

Answer 2

The answer is 145 divided by tan 65 degrees.

Since the equation for tangent is opposite/adjacent, you can just plug the numbers in.

tan(65)=145/x (x being the height that you are trying to find)

tan(65) * x = 145

Then divide tan(65) to isolate the x and you get:

145/tan(65)

Hope this helps!