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 …

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 …

They are fundamental in geometry and are used to solve problems involving circles, especially in finding unknown angles or lengths. The following diagram gives some examples of circle …

This section explains circle theorem, including tangents, sectors, angles and proofs. The video below highlights the rules you need to remember to work out circle theorems.

Jun 9, 2025 · Thales' Theorem Let $A$ and $B$ be two points on opposite ends of the diameter of a circle. Let $C$ be another point on the circle such that $C \ne A, B$. Then the lines $AC$ …

In geometry, we examine several circle theorems related to the various elements of a circle, including a chord, segments, etc. Let's first define a circle before moving on to talk about the …

Not only are circle theorems important in geometry, but they also appear in trigonometry, algebra, and even calculus. In this article, we will explore the basics of circle theorems and how to use …

Jul 15, 2025 · Here, we’ll go through all circle theorems and how you can use them to work out different types of angles in a circle. We’ll also share examples, plus practice questions and fun …

What do I need to know? You must be familiar with the names of parts of a circle including radius, diameter, arc, sector, chord, segment and tangent