Students will be able to
- understand how to apply the basic proportionality theorem (Thales’s theorem) to find a missing length of a line segment in a transverse line cut by parallel lines
- including problems involving algebraic variables as side lengths,
- including problems that use the properties of polygons,
- understand that if the lengths of the segments of one transversal are equal, then the lengths of the segments of any other transversal are also equal (Thales’s special theorem).