Answer:

Step-by-step explanation:
We know that since angles in a triangle add up to 180º, the remaining angle must be 45º.
So the side with length
must be equal to the side with length
. That is:

Now, by Pythagoras:

Answer:
Prime
Step-by-step explanation:
Answer: 4 miles = 16 min
4 miles : 16 min
Step-by-step explanation:
You have to multiply by the same number