Area of circle: πr²
Circumference of Circle: dπ or 2rπ
If 36 is radius:
Area:
Pi is 3.14 so 3.14(36²)
36² is 1,296. 3.14 x 1,296 = 4069.44 units²
Circumference:
2(36) = 72(3.14)= 226.08 units
If 36 is diameter:
Area:
36/2 = 18 since radius is half of diameter.
π = 3.14
3.14(18²)
18² = 324
3.14(324)
1017.36 units²
Circumference:
36(3.14)
113.04 units