
Theorem Sheet v7_0
... to satisfy all the conditions of a theorem before invoking it! “If two lines are cut by a transversal such that alternate interior angles are congruent, then the lines are parallel.” “If two lines are cut by a transversal such that alternate exterior angles are congruent, then the lines are para ...
... to satisfy all the conditions of a theorem before invoking it! “If two lines are cut by a transversal such that alternate interior angles are congruent, then the lines are parallel.” “If two lines are cut by a transversal such that alternate exterior angles are congruent, then the lines are para ...
Angles of Triangles VOCABULARY Interior angles
... Rays: extend forever in one direction and have one endpoint. They are written like: BD ...
... Rays: extend forever in one direction and have one endpoint. They are written like: BD ...
Solving Triangles
... intended as a starter. In some cases e.g. the Pythagoras investigation, the main activity will take the whole lesson. Otherwise a short set of quick questions recapping the ideas of the previous lesson should be used. • Main Activity: each sheet contains a main activity/exercise. • Exposition: the s ...
... intended as a starter. In some cases e.g. the Pythagoras investigation, the main activity will take the whole lesson. Otherwise a short set of quick questions recapping the ideas of the previous lesson should be used. • Main Activity: each sheet contains a main activity/exercise. • Exposition: the s ...