Respuesta :
Answer: Distance between Sarah's house and Amy's house is 7.6 miles.
Step-by-step explanation:
Since we have given that
Distance at which Sarah lives west of Peter= 4 miles
Distance at which Amy lives south of Peter = 6.5 miles
Now, we need to find the distance between Sarah's house to Amy's house,
We'll use Pythagorus theorem,
[tex]H^2=B^2+P^2\\H^2=4^2+6.5^2\\H^2=16+42.25\\H^2=58.25\\H=\sqrt{58.25}\\H=7.6[/tex]
So, Distance between Sarah's house and Amy's house is 7.6 miles.

Answer:
Suppose Peter lives at O, i.e at the center in the middle of Four direction.
Distance from Sarah house to peter= 4 miles west of peter house=OS
Distance from Peter house to Amy= 6.5 miles south of peter house=OA
In right Δ S O A, ∠ O=90°
SA²= SO² + OA² → [By pythagoras theorem]
SA² =4² + (6.5)²
= 16+ 42.25
= 58.25
SA=√58.25=7.63 miles (approx)
