Answer:
[tex]x = \sqrt{11.4^2+2.6^2}\\\\[/tex]
Rounded to the nearest hundredths: 11.69.
Step-by-step explanation:
I would use the Pythagorean theorem for this problem.
The difference between the highest point and the lowest point of AD is 9.8-7.2 = 2.6, so that would be the height of the triangle. The length/base of the triangle would be 11.4.
Now, just solve using Pythagorean's theorem:
[tex]x = \sqrt{11.4^2+2.6^2}\\\\[/tex]
Rounded to the nearest hundredths: 11.69.
I hope this helped you.
