WASHINGTON (ABC7) — If you need a protractor for any of our lessons and activities, please feel free to print it and use this resource. Find the protractor template below: ...

Just call it the great protractor mystery.Channel 4 Action News' Sheldon Ingram reported that nearly 300 protractors have been found in Pittsburgh's East Liberty, Shadyside and Northside neighborhoods ...

A long-standing Pittsburgh mystery is growing again!Observant Pittsburghers have surely noticed all of the colored protractors glued to things in public places across Pittsburgh’s neighborhoods.

As noted in the Introduction, the earliest use of protractors was probably in navigation. Protractors assisted with laying out angles to indicate the actual or desired direction of a ship. Makers ...