You used a ruler........................................?
Answer:

Step-by-step explanation:
step 1
Find the diameter of the circle
the formula to calculate the distance between two points is equal to

substitute the values




The radius is half the diameter
so

step 2
Find the center of the circle
the center of the circle is the midpoint between the endpoints of the diameter
so
The center is


step 3
Find the equation of the circle
The equation of the circle is

substitute the values


Answer:
40m^2 152.6m^2
Step-by-step explanation:
Answer:
2300
Step-by-step explanation:
Add the two numbers in the middle and divide br 2.