Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles. Trigonometry is found all throughout geometry, as every straight-sided shape may be broken ...

VO: Ambrose is an apprentice pizza maker at the world famous Grecian Pizza Parlour.He’s taking his new job very seriously. He’s even come in early today, before the pizza parlour is open. It looks ...

A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...