Angles and lines
Angle relationships, parallel lines
Triangle angle sum, polygon angle sums
Triangles
Pythagorean Theorem and common triples
Special right triangles (45-45-90, 30-60-90)Area of triangles
Similar triangles
Quadrilaterals and polygons
Area and perimeter
Properties of parallelograms, trapezoids, rhombi
Circles
Circumference and area
Arcs and sectors (basic)
Area and perimeter strategies
Composite and shaded regions
Dissection and rearrangement
Solid geometry
Volume and surface area of cubes, prisms, cylindersV
isualizing 3D figures and nets
Transformations and symmetry
Reflections, rotations, translations
Line and rotational symmetry