Answer:
40m
Step-by-step explanation:
if 20 it the diameter then the daius is 10 which is multiplied by 4
Answer:
100pi m or approximately 314 m^2
Step-by-step explanation:
We need to find the radius to find the area
r = d/2 = 20/2 = 10
The area of a circle is
A = pi r^2
A = pi (10)^2
A = 100 pi m^2
If we approximate pi by 3.14
A = 100*3.14
A = 314 m^2
