Answer:
fa
Step-by-step explanation:
Answer:
im
Step-by-step explanation:
dumb
A = pi x r^2
A = pi x 8^2
A = pi x 64
A = 201.061..
A = 201cm^2 (3sf)
Answer:
153.86
Step-by-step explanation:
The area of a circle is
. So, 
< for the first one. 3.4<4.0<4.2 for the second