About this simulation
Students drag the corners of a triangle and record each side length with the angle opposite it. The data table works out the ratio for every row, so students can test triangle after triangle and find what stays the same. Use it on the board to launch the sine rule, or let students explore and record on their own devices.
Who it's for
MYP years 4–5 (ages 14–16), standard and extended mathematics. Also a quick refresher at the start of DP.
How to use it
- Drag the corners to make any triangle.
- Select Record data, then drag each side and its opposite angle into the table.
- Compare the ratios. Then change the triangle and start a new table.
- Copy your tables into your notebook.
Lengths in cm, angles in degrees, both to 3 significant figures.
Drag a measurement into the table, or tap it and then tap a box.