Circles Flashcards
1
Q
Equation for a circle
A
(x - a)^2 + (y - b)^2 = radius^2
2
Q
A tangent to a circle is perpendicular…
A
to the radius of the circle at the point of intersection
3
Q
The perpendicular bisector of a chord will go through the…
A
centre of a circle
4
Q
How do you find the centre of a circle given any three points on the circle?
A
Find the equations of the perpendicular bisectors of two different chords
Find the point of intersection between the perpendicular bisectors.
