Maths · Coordinates of a point in space, the distance between two points, section formula
The ratio of the volume and surface area of a sphere of unit radius:
The ratio of the volume and surface area of a sphere of unit radius:
- A. 4: 3
- B. 3: 4
- C. 1: 3
- D. 3: 1
Step-by-step solution
For a sphere of radius r=1, volume = (4/3)π(1)^3 = (4/3)π, surface area = 4π(1)^2 = 4π. Ratio of volume to surface area = ((4/3)π) / (4π) = 1/3 = 1:3.
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