The ratio of the radii of two spheres is 4 : 5. Find the ratio of their total surface areas is.
A. 5 : 4
B. 4 : 5
C. 16 : 25
D. 25 : 16
Answer:C
The ratio of the radii of two spheres is 4 : 5. Find the ratio of their total surface areas is.
A. 5 : 4 B. 4 : 5 C. 16 : 25 D. 25 : 16