What you need: ruler, protractor, pencil and paper. Use these to construct a triangle when you know the length of 1 side and the 2 angles at each end of it. In this case use the length 8 cm, and the ...

PITTSBURGH (KDKA) -- Unless you're an architect or an engineer, it's probably been years since you last used a protractor in geometry class. But, now the semi-circular tool is showing up in some odd ...

WEBVTT 3 NEW AT 5:30-- A MATH MYSTERY IN PITTSBURGH-- IS BACK!! REMEMBER THESE? PROTRACTORS-- USED TO MEASURE ANGLES-- GLUED ALL OVER THE CITY! YOU REALLY DON'T NOTICE THEM UNTIL SOMEONE POINTS THEM ...