alleryThe diameter of a sphere is how many times its radius?
A1
B2
C4
D3
Answer & Solution
Correct answer: B. 2
1. A radius runs from the center to the surface.
2. Extending it through the center to the opposite side gives a diameter.
3. So d = 2r.
_Source: Wikipedia, Sphere (CC BY-SA 4.0), Basic terminology_
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