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Circle Theorems: Angle Notation WORKSHEET

Suitable for Grades: 7th Grade, Geometry
CCSS: 7.G.B.5, HSG.C.A.2
CCSS Description: Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

Identify and describe relationships among inscribed angles, radii, and chords. Include the relationship between central, inscribed, and circumscribed angles; inscribed angles on a diameter are right angles; the radius of a circle is perpendicular to the tangent where the radius intersects the circle.

Circle Theorems: Angle Notation WORKSHEET DESCRIPTION

This worksheet helps students practise identifying and naming angles using correct angle notation.

The first section provides diagrams where students identify specific angles, focusing on recognising notation accurately.

In the second section, students state the sizes of 10 angles taken from four clearly labelled diagrams. Since all angles are provided, no calculations are needed, allowing learners to focus entirely on understanding and applying angle notation.

This worksheet builds a solid foundation in recognising angles and their properties, ensuring students are well-prepared for more advanced topics such as circle theorems.