Geometry and TrigonometryEasyPoint on a circle given its centre and radius
Geometry and Trigonometry practice question
In the xy-plane, a circle has centre (2, 3) and radius 1. Which of the following points lies on the circle?
- A. (3, 3)Correct
- B. (2, 3)
- C. (4, 3)
- D. (0, 0)
Answer: A. (3, 3)
(3, 3) is exactly 1 unit to the right of the centre.
Why the other answers are wrong
- B. (2, 3)
- (2, 3) is the centre, not a point on the circle.
- C. (4, 3)
- (4, 3) is 2 units from the centre.
- D. (0, 0)
- (0, 0) is far from the centre.
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