In the second one I'm pretty sure you just measure the length of the points.
Answer:
b
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
The radius is a distance on a circle from the center to a point on the circle.
We have both of these points describe here in this definition. Using the distance formula will give us the radius.

The difference between 1 and -3 is 1-(-3)=4.
The difference between 5 and 2 is 5-2=3.




Answer:
D
Step-by-step explanation:
Brainliest?