Answer:<em> 12.56 km</em>
Step-by-step explanation:
C=2(3.14)r
C=2(3.14)2
C=12.56
Answer:Yes
Step-by-step explanation:
Given
Suppose side length of cube is a
If we dilate the cube using a scale factor of 2
Side length becomes 2a
and the surface area becomes 
Surface area
Surface area
Thus surface area multiplied by a factor of 4
Now for volume



Therefore volume is multiplied by a factor of 8
Therefore the above statements make sense
9/233
The answer will be 0.0386
I did not round it
99
999
9999
ninety-nine
technically this does not start with nine