Measurements

Measurements quantify the size, orientation, coordinates, and other characteristics of Sketchpad objects. All measured values update dynamically in Sketchpad when you change the objects they measure. Often you can gain important mathematical insights by observing how measurements change and how they relate to each other and to other objects in the sketch.

All measurements have numeric values of one sort or another. Most measurements (all except for coordinate pair and equation measurements) have a single value; these single-valued measurements can be used for many purposes in your sketch.

To create new measurements, first select objects to measure, then choose a command from the Measure menu.