Answer:
18 meters if my mental math is right.
Answer:
for the number 13
Step-by-step explanation:

by Pythagoras theorem
x= √81+36
x= √117
punch square root of 117 with a calculator, I don't have one now
Answer:
10
Step-by-step explanation:
Both numbers are divisible by 10.
??? What is the rest of the question?