MCQ
The relation between diameter and radius of a circle is:
- A$\text{d}=2\pi\text{r}$
- ✓$d = 2r$
- C$r = 2d$
- D$d = r$
✓
Answer
Correct option: B.
$d = 2r$
Radius is half the length of the diameter, thus diameter is twice the length of the radius.
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