15. true 16. false in my coculations.
Answer:
true
Step-by-step explanation:
Considering we have a line segment for (0,0) to (0,8).
The midpoint is (0,4).
The formule for calculate the distance between two points is:

We substituye the values:
= 8
The point halfway between the endpoints is (0,4)
that is the half of the distance between the points.
To find the circumference of a circle you have to multiple the radius by 2 and also by pi. So, to find the radius when given just the circumference, who have to do the reverse operation and divide the circumference by 2 and also by pi to get the answer of 22.92993631, which you could of course round.
Answer:
Around 226.2
Step-by-step explanation:
if diamater = 12
radius = 6
6^2 = 36
and 36 times π = around113.1
113.1 times 2 = 226.2
its not exactly 226.2