The altitude of an equilateral triangle is 9. Calculate the length of each side of the equilateral triangle. Leave your answer in simple radical form

Think of the altitude as a line that divides the equilateral triangle into two equal parts.

Each part is a 30, 60, 90 triangle. The altitude of the triangle corresponds to the x side of the equilateral triangle.

So: 9=x , and x=9/.

However, one side of the triangle is actually 2x, so the correct answer is

18/

Let me know if this helps!

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 : )

do you have a picture of the table