- Aa centre and a radius
- Bthree points
- Ctwo parallel lines
- Da single point only
Step-by-Step Solution
Euclid's third postulate: a circle is determined by a chosen centre and a chosen radius.
Answer: A) a centre and a radius
Euclid's postulate 'A circle can be drawn with any centre and any radius' lets us draw a circle once we know:
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