Follow the areas on a right triangle.
Resize a triangle. Follow its ratios.
Match each side with its opposite angle.
Open the angle. Watch the third side.
Open a triangle. Follow its area.
Turn a point. Trace sine, cosine and tangent.
Change the shape. Follow the angles.
Add sides. Investigate the angles.
Change lengths. Follow volume and surface area.
Move a shape. Follow its coordinates.
Explore radii, chords, arcs and regions.
Scale lengths, areas and volumes.
Different journeys. The same displacement.
Measure a direction clockwise from north.
Move the points. Discover seven relationships.
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