Answer:
3
Step-by-step explanation:
The lights and pole form a right triangle. The question gives the hypotenuse as 5 and one side length as 4.
Use the Pythagorean theorem:
.
Plug in what you are given: 


b = 3
Or you could recognize that it was a pythagorean triple: 3, 4, 5
This should be correct I am sorry if it is not.
<span>-0.01511422733</span>
Answer:
120
Step-by-step explanation:
40*30