Right triangle/rafter keys – Calculated Industries 4045-B User Manual
Page 8

8 — Construction Master IV
Right Triangle/Rafter Keys
[Pitch]
This key is used to enter or calculate
the pitch (slope) of a roof (or right tri-
angle). Pitch is the amount of "Rise"
over 12 inches (1 meter, if metric) of
"Run." Pitch may be entered as:
a dimension 9 [Inch] [Pitch]
an angle
30 [Pitch]
a ratio
0.75 [Conv] [Pitch]
a percentage 75 [%] [Pitch]
A pitch entry will remain in perma-
nent storage until revised or reset. A
solution will be replaced by its en-
tered value once the calculator is
cleared.
[Rise] — Rise Key
Enters or calculates the rise or verti-
cal leg (height) of a right triangle.
[Run] — Run Key
Enters or calculates the run or hori-
zontal leg (base) of a right triangle.
[Diag] — Diagonal Key
Enters or calculates the common or
diagonal leg (hypotenuse) of a right
triangle. Typical applications are
“squaring" slabs or finding common
rafter lengths.