10 — CONSTRUCTION MASTER ®P RO / TRIG / DESKTOPRight Triangle/Roof Framing KeysRight Triangle:Using the Pythagorean theorem, the top row of keys on yourConstruction Master Pro will calculate instant solutions in dimensionalformat to right triangle problems (particularly, roof framing).TheConstruction Master Pro’s keys are labeled in easy to rememberroofing terms. The right triangle is calculated simply by entering twoof four variables: Rise, Run, Diagonal, or Pitch.pPitch — Enters or calculates thePitch (slope) of aroof (or right triangle). Pitch is the amount of “rise”over 12 Inches (or one meter) of “run.” Pitch may beentered as:• a dimension: 9 i p• an angle or degrees: 3 0 p• a percentage (percent grade): 7 5 % p• a pitch ratio: 0 • 7 5 Ç pOnce a Pitch in one of the above formats is entered,consecutive presses of p will convert to theremaining Pitch formats listed above (e.g., Pitch inInches will convert to Pitch Degrees, Percent Gradeand Pitch Ratio/Slope).Note: An entered (vs. calculated) pitch is a permanent entry. Thismeans that it will remain stored even after you turn the calculatoroff. To change the Pitch, simply enter a new Pitch value.In contrast, a calculated Pitch value is not permanently stored.This means that the calculator will return to the Pitch value youlast entered when you clear the calculator or press otwice.
