# Special Constructions and Techniques

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Sketchpad users often ask about how to create particular constructions or use particular techniques. Here’s a collection of some of the most common requests.

• | Construct a Segment of Fixed Length

• | Construct an Angle of Fixed Measure

• | Construct Congruent Segments

• | Construct Congruent Angles or Triangles

• | Construct a Geoboard

• | Zoom In and Out on a Sketch

• | Show Just One Hidden Object

• | Construct a Slider

• | Make a Perpendicular Bisector Tool

• | Use Split and Merge to Explore Constructions

• | Construct a Sierpiński Gasket

• | Use Signum to Construct a Piecewise Function