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 ...

Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...

In our mind’s eye, the universe seems to go on forever. But using geometry we can explore a variety of three-dimensional shapes that offer alternatives to “ordinary” infinite space. When you gaze out ...

Geometry: Circles and Polygons covers the specifics of geometry involving circles and polygons with any number of sides. The class includes a discussion on the internal angles of a circle as well as ...

Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle. Both can be calculated using the angle at the centre and the diameter or radius. Practice circle ...

THIS is only our old friend, “La Geometria del Compasso di Lorenzo Mascheroni” (Paris, 1797), decked out in the manner we have indicated in the quoted portion of the title. The order of sequence has ...

Have you recently had your 4x4 lifted and are suffering from a harmonic oscillation that can both be felt and heard? Have you rebalanced your tires or swapped in newly balanced driveshafts only to ...