FREE DOWNLOAD
Help your students prepare for their Maths GCSE with this free circle graph worksheet of 30+ questions and answers
You can unsubscribe at any time (each email we send will contain an easy way to unsubscribe). To find out more about how we use your data, see our privacy policy.
Circle graphs with a centre (0, 0) have the general equation x2+y2=r2, where r is the radius of the circle.Β
To draw a circle graph we look at the radius and draw a circle with the given radius around the centre (0, 0). If we are given a point on a circle graph, we can find the equation of the circle by finding the length of the radius using Pythagorasβ theorem. We can then use this to write the equation of the circle.Β
Given a point on a circle we can also find the gradient of the radius. We can use this to find the gradient of the tangent (which is perpendicular to the radius) and therefore the equation of the tangent to the circle.Β Β
We can use circle graphs to solve pairs of simultaneous equations where one is the equation of a circle. If we draw the graphs of both equations, the points of intersection between the line and the circle graph show the solutions to the simultaneous equations.Β
Looking forward, students can then progress to additional types of graph worksheets and on to more algebra worksheets, for example a simplifying expressions worksheet or simultaneous equations worksheet.
For more teaching and learning support on Algebra our GCSE maths lessons provide step by step support for all GCSE maths concepts.
With Third Space Learning's secondary maths tutoring programmes, students in Year 7-11 receive regular one to one maths tutoring to address gaps, build confidence and boost progress.
"My confidence in the tutoring is high. We've had some phenomenal results. I even had one girl get a Grade 8 this year; she came to every tutoring session."
Stacey Atkins, Maths Director, Outwood Grange Academies Trust