Khan Academy

Measures of angles formed by a transversal (K-A)

Measuring angles in degrees (K-A)

Measuring angles using a protractor (K-A)

Measuring angles using a protractor 2 (K-A)

Missing angles with a transversal (K-A)

Parallel & perpendicular lines (K-A)

Area of a circle (K-A)

Proving angles are congruent (K-A)

Area of a circle intuition (K-A)

Vertical angles (K-A)

Area of a parallelogram (K-A)

Area of a quadrilateral on a grid (K-A)

Area of a triangle (K-A)

Area of a triangle on a grid (K-A)

Area of composite shapes (K-A)

Area of kites (K-A)

Area of trapezoids (K-A)

Area of triangles (K-A)

Challenge problems: perimeter & area (K-A)

Intro to nets of polyhedra (K-A)

Perimeter & area (K-A)

Euclid as the father of geometry (K-A)

Perimeter & area of composite shapes (K-A)

Geometric definitions example (K-A)

Radius & diameter from circumference (K-A)