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| IGCSE - Geometry |
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| Angle facts |
- Simple angle facts such as angles on a straight line, and parallel line properties.
- Acute, obtuse, reflex angles.
- Using a protractor to measure and construct angles.
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| Triangles and quadrilaterals |
- Names and angle facts of scalene, isosceles, equilateral, acute, obtuse and right-angled triangles.
- Associated symmetry of triangles.
- Names and angle facts of the quadrilaterals: square, oblong, parallelogram, trapezium, rhombus, kite, arrowhead.
- Associated symmetry of quadrilaterals.
- Congruent and similar triangles.
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| Polygons |
- Names of polygons up to 10 sides.
- Know and use the angle formula for total interior degrees.
- Know that external angles of a polygon always equal 360 degrees.
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| Circles |
- Names/vocabulary used in circles.
- Angle in a semi-circle is 90 degrees.
- Angles subtended from the same chord are equal.
- Opposite angles in a cyclic quadrilateral add to give 180 degrees.
- The radius meets the tangent at 90 degrees.
- Angle at the centre is twice that at the edge of a circle, when subtended from the same chord.
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