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 ...

ZACH: Our virtual skateboard is looking awesome, Kayla! KAYLA: Yeah, but I think we should add in some more ramps. ZACH: Let’s have a look at our design.Ah, one of the angle measurements is missing on ...

Construct a convex octagon with four right angles. It probably says a lot about me as a teacher that I assign problems like this. I watch as students try to arrange the right angles consecutively.

KAYLA: It’s skatepark building day in the virtual city.Woohoo! ZACH: Did you see my 180?Sweet, dude!Okay, let’s do it. ADA: Building the skatepark is going to require lots of angles.An angle is a ...