The equation of a circle:

(h,k) - the coordinates of the center
r - the radius
The center is (4,0), the length of the radius is 2√3.
Yes because if you look at the tenths place you will see that 8 is bigger than 7
Given :
The volume of a cube is related to the area of a face by the formula
.
To Find :
The volume of a cube whose face has an area of 100 cm.
Solution :
Area is :
A = 100 cm.
Putting value of A in given equation of volume.
We get :

Therefore, volume of cube is 10000 cm².
Hence, this is the required solution.