Imagine you are standing 20 feet away from a tree that is 80 feet tall. The angle that your feet make with the top of the tree is

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

----> by TOA (opposite side divided by the adjacent side)

substitute the given values

using a calculator

c

step-by-step explanation:

c

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )