Angles at the centre and circumference higher circle. The line pqr is a tangent to a circle with centre o. Points a, b and c are all on the circumference of the circle. They need to fill in the gaps and state which theorem they have used. Circle theorems flash cards circle theorems matching cards game angles in a semi circle are 90 degrees angles in the same segment are equal the angle at the centre is twice the angle at the circumf. Theorems questions corbettmaths gcse circle theorems bland answers 2. Learn about and revise the different angle properties of circles described by different circle theorems with gcse bitesize aqa maths. Calculate the size of the following angles, giving a geometrical reason for each of your answers. A tangent to a circle is always perpendicular to a radius at the point of contact 90. This worksheet contains circle theorem questions with the answers partly done to guide the pupils. I made this after struggling to understand it myself, once i got to. Circle theorems cxc csec and gcse math revision youtube. A, b and c are points on the circumference of a circle, centre o.
Edexcel gcse mathematics linear 1ma0 circle theorems materials required for examination items included with question papers ruler graduated in centimetres and nil millimetres, protractor, compasses, pen, hb pencil, eraser. Give a reason for each stage in your working total for question 7 is 5 marks. This website and its content is subject to our terms and conditions. Calculate angle 2 marks diagram not accurately drawn diagram not accurately drawn. In my opinion, the most important shape in maths is the circle. Points a, b and c are all on the circumference of the circle, o represents the centre. Two tangents drawn from the same point are equal in length. The corbettmaths practice questions on circle theorems. Line a b is a straight line going through the centre o. Show knowledge of circle theorems in their solutions to. Explaining circle theorem including tangents, sectors, angles and proofs, with notes and videos. Corbettmaths videos, worksheets, 5aday and much more.
Circle theorems gcse higher ks4 with answerssolutions note. Maths genie free online gcse and a level maths revision. Gcse maths revision circle theorems questions maths made easy. Its so simple to understand, but it also gives us one of. Circle theorems free worksheets, powerpoints and other. Gcse circle theorems this video looks at gcse higher tier circle theorems and covers angles in a semicircle angle at the centre double the angle at circle theorems questions corbettmaths corbettmaths this video has a series of questions based on the circle theorems.