lines and angles
Show/hide protractor Rotate buttons
Rotate the angle Zoom button
angles and length
ruler to measure lines to the nearest millimetre.
Measure the length of each of three lines.
Drag the ruler into position.
Measure the length of each side of a quadrilateral.
A quadrilateral is randomly generated; keep clicking until you are happy
with the quadrilateral. Drag the ruler to measure one side of the quadrilateral.
Use the rotate buttons to line up the ruler and the side. Use the zoom
button to zoom in or out. The quadrilateral can be moved by dragging
the top left corner.
Measure an angle.
An angle is randomly generated; keep clicking until you are happy with
the angle. The angle can be estimated or measured. Move the angle by
dragging its 'corner'. Reveal the protractor and move it into position
then rotate it to fit over the angle. The angle can also be rotated.
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