
Edexcel 8MA0/01 Jun 2022 AS Exam Q. 11 : 8 marks in 9:36 min.
Edexcel 9MA0/01 Jun 2022 A2 Exam Q. 3 : 5 marks in 6:00 min.
Edexcel 8MA0/01 Jun 2022 AS Mock Q. 6 : 6 marks in 7:12 min.
Edexcel 8MA0/01 Nov 2021 AS Exam Q. 15 : 9 marks in 10:48 min.
Edexcel 9MA0/01 Nov 2021 A2 Exam Q. 7 : 9 marks in 10:48 min.
Edexcel 9MA0/01 Oct 2020 A2 Exam Q. 11 : 8 marks in 9:36 min.
Edexcel 8MA0/01 Oct 2020 AS Exam Q. 11 : 9 marks in 10:48 min.
Edexcel 9MA0/02 Oct 2020 A2 Exam Q. 14 : 7 marks in 8:24 min.
Edexcel 8MA0/01 Jun 2019 AS Exam Q. 10 : 5 marks in 6:00 min.
Edexcel 9MA0/02 Jan 2019 A2 Mock Q. 8 : 7 marks in 8:24 min.
Edexcel 8MA0/01 Jun 2018 AS Exam Q. 14 : 9 marks in 10:48 min.
Edexcel 9MA0/01 Jun 2018 A2 Exam Q. 6 : 10 marks in 12:00 min.
Edexcel 8MA0/01 May 2018 AS Mock Q. 10 : 8 marks in 9:36 min.
Edexcel 9MA0/02 May 2018 A2 Mock Q. 9 : 9 marks in 10:48 min.
Edexcel 8MA0/01 Jun 2017 AS Sample Exam Q. 17 : 10 marks in 12:00 min.
Edexcel 9MA0/01 May 2017 A2 Sample Exam Q. 3 : 4 marks in 4:48 min.
Explore the general form of the equation of a circle

How many possible points of intersection between straight lines and circles ?

Tangent and chord properties

Explore the circumcircle of a triangle

Investigate Equation of Circle
A circle can be expressed with the cartesian equation \(\color{blue}{{\left( {x - a} \right)^2} + {\left( {y - b} \right)^2} = {r^2}}\),
where a, b and r are constants.
The circle is centred at \(\color{blue}{(a, b)}\) and has radius \(\color{blue}{r}\).
where a, b and r are constants.
The circle is centred at \(\color{blue}{(a, b)}\) and has radius \(\color{blue}{r}\).
Matching Circles
You can select eight green circles on this page. Using the sliders to match the blue dashed circle to the green circle
will reveal the equation in each case, but can you say what the equation is before making the match?