Question

The radius of a sphere is doubled. Which of the following will increase by a factor of 4
by a factor of 4?
(1) Only the surface area
(2) Only the volume
(3) Both the volume and surface area
(4) None of these​

Answer 1

Answer:

(3) Both the volume and surface area.

Answer 2

Answer: (3) Both volume and surface area

Step-by-step explanation:

As SA= 4×pi×r^2

If the radius is doubled, it will increase by 4 times

V=4/3×pi×r^3

If the radius is doubled, the volume will increase by 8 times

Hope it helps!