U
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— 7
Circular/Arc Function Keys
The circle key helps you quickly solve circular area, volume or arc
problems.
C
Circle
— Displays and calculates the following val-
ues, given an entered circle diameter* or radius:
• Diameter (DIA)
• Circle area (AREA)
• Circumference (CIRC)
*To enter a diameter (e.g., 10 Feet), press
1 0 f C
.
Ç a
Radius
— Enters or calculates the
circle radius
(e.g., 5 f Ç a).
a
Arc Length or Degree of Arc
— A multi-function
key that enters or calculates
Arc Length
or
Degree
of Arc
, and further solves for additional circular/arc
values, including arched segment walls (based on
the stored On-center spacing), listed below.
Press Result
1 Arc Length or Degree of Arc (ARC)
2 Chord Length (CORD)
3 Segment Area (SEG)
4 Pie Slice Area (PIE)
5 Segment Rise (RISE)
6 Stored On-Center Spacing (OC)
7 Length of Arched Wall 1* (AW 1)
* The calculator will calculate arched segment wall lengths (if
applicable) with consecutive presses of the
a
key until it reach-
es the last wall length.
R
Run (Chord Length)
— Enters or calculates the
Chord Length
. Used in conjunction with an entered
segment rise to solve for the radius of a circle or
with an entered radius to solve for the segment rise.
r
Rise (Segment Rise)
— Enters or calculates the
segment rise
. Used in conjunction with an entered
Chord Length to solve for the radius of a circle or
with an entered radius to solve for the Chord Length.
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