Answer :12 feet
Explanation :(x)^2=(11.5)^2+(3.5)^2
X^2=132.25+12.25
X^2=144.5 then square root it
X=12 feet
Pi 3 8 17 square root 8/3 square root
Answer:

Step-by-step explanation:
Given the system of two equations:

Add these two equations (left side add to left side and right side add to right side):

Substitute
into the first equation:

Answer:
but I don't know,I hope you understand
Step-by-step explanation:
i hope you understand ☺️
if who one knows please answer her/his question
thank you