How to change the labels of any Geometry object using the annotation tool – eg change triangle ABC to triangle PQR.

Create a triangle in Geometry, apply a matrix transformation to the vertices in Main and view the image back in Geometry.

Use an object and its transformed image in Geometry to determine the equivalent transformation matrix in Main.

Fast track your animation skills by animating a tangent line around a circle.

Examine the angle in the semi-circle using a slider.

Examine the angle in the semi-circle using the Animation tool.

Examine sum of opposite pairs of angles using the Expression tool.

Basic settings in the Sequence application.

Create the sequence of Triangle Numbers using an explicit definition, and graph the first 12 terms.

Create an arithmetic sequence, then a geometric sequence, also finding the sums of the GP.