Arc/Circle Examples; Arc Length - Degree And Diameter Known; Arc Length - Degree And Radius Known; Using Arck To Calculate An Arc Length - Calculated Industries Sheet Metal/HVAC Pro Calc User Manual

ARC / CIRCLE EXAMPLES
Arc Length — Degree and Diameter Known
Find the Arc length of an 85° portion of a Circle with a 5-Foot
Diameter:
KEYSTROKE
o o
5 f C
8 5 Ç C
C
Arc Length — Degree and Radius Known
Find the Arc length of a Circle with a 24-Inch Radius and 77° of Arc
(77° of 360° Circle):
KEYSTROKE
2 4 i Ç p (Segment Radius)
o o
7 7 Ç C
C

Using ArcK to Calculate an Arc Length

Using the ArcK constant (0.017453), calculate the Arc length given
100° of a one-unit Circle. The Radius is 5 Feet.
KEYSTROKE
1. Enter Degrees and multiply:
o o
1 0 0 x
2. Enter Radius and multiply:
5 f x
3. Recall ArcK:
Ç π
4. Calculate Arc Length:
=
Note: ArcK is equivalent to the constant of a 1° Arc angle for a one-unit value.
It may be multipled with a Unitless, Linear, Square or Cubic value. The formula for
ArcK is π/180.
78 — S M
HEET ETAL
/HVAC P
RO
C
ALC
DIA 5
FEET
ARC 85.00°
ARC 3 8-1/2
FEET
RAD 24
ARC 77.00°
ARC 32-1/4
500
FEET
ARCK 0.017453
8 8-3/4
FEET
DISPLAY
0.
0
INCH
INCH
DISPLAY
0.
INCH
INCH
DISPLAY
0.
100.
0
INCH
INCH