Answer:
Step-by-step explanation:
r = d/2
r = 4/2
r = 2
pi = 3.14
Circumference = 2 * pi * r
Circumference = 2 * 3.14 * 2
Circumference = 12.56
Area = pi r^2
Area = 3.14 * 2^2
Area = 4 * 3.14
Area = 12.56
1
198 degrees
the simpliest form is
(4p * 4p * 4p * 4p) * (4p * 4p * 4p * 4p)
exponent is the number being multiplied by itself a number of times
2^4 is 2*2*2*2
3^1 is 3
