If the surface area of a sphere is increased by a factor of 3,by what factor does the radius of the sphere change?
A) 1.14
B) 1.73
C) 2.00
D) 2.24

Question

Quizplus · Accepted Answer

The surface area of a sphere is proportional to the square of its radius (A = 4πr²). If the surface area is increased by a factor of 3, the radius increases by the square root of 3, which is approximately 1.73.

If the Surface Area of a Sphere Is Increased by a Factor