Web Reference: We can use this idea to find a circle's center: Where the diameters cross is the center! When we know two opposite points on a circle we can draw that circle. Put some pins or nails on those points and use a builder's square like this: Example: What is the size of Angle WXY? Opposite angles of a cyclic quadrilateral add to 180°. Below is a summary of each circle theorem, along with a diagram. You need to remember all of these circle theorem rules and be able to describe each one in a sentence. In this article, we will explore various circle theorems that are used in geometry for solving different problems. We shall discuss the statements and proofs of the circle theorems and solve a few examples based on these theorems to understand their applications. What are Circle Theorems?
YouTube Excerpt: This video is for students aged 14+ studying GCSE Maths. A video explaining how to use and understand
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