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12 questions from this quiz
Three positions
Distance from centre < radius
Distance from centre = radius
Distance from centre > radius
d=(x2−x1)2+(y2−y1)2d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}d=(x2−x1)2+(y2−y1)2
x2+y2=r2x^2 + y^2 = r^2x2+y2=r2
r=5r = 5r=5
When x2+y2<r2x^2 + y^2 < r^2x2+y2<r2
When x2+y2>r2x^2 + y^2 > r^2x2+y2>r2
Inside the circle
Outside the circle
Substitution method
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