Circle theorems are used in geometric proofs and to calculate angles. Part of Maths Geometry and measure. Save to My Bitesize Save to My Bitesize Saving Saved Removing Remove from My Bitesize.

the circles is 3 times the area of the inscribed circle. Theorem III: For a square, the ratio of the. areas of the circumscribed and inscribed circles is 2:1.

Circle theorems - Higher - AQA. Circles have different angle properties described by different circle theorems. Circle theorems are used in geometric proofs and to calculate angles.