User Manual

50 — C ONSTRUCTION M ASTER
®
P RO / T RIG / D ESKTOP
(Cont’d)
KEYSTROKE DISPLAY
10. Find arched wall stud lengths:
a AW1 4 FEET 10-11/16 INCH
a AW2 4 FEET 6-5/8 INCH
a AW3 3 FEET 11-3/8 INCH
a AW4 3 FEET 0-1/16 INCH
a AW5 1 FEET 6-1/4 INCH
Note: Successive presses of a will toggle to the beginning.
Arched Windows
Find the radius of an arched window with a chord length of 2 feet 7
inches and a rise of 10-1/2 inches. Then, find the arc angle, arc
length and segment area of the window.
KEYSTROKE DISPLAY
1. Enter chord length:
o o 0.
2 f 7 i R RUN 2 FEET 7 INCH
2. Enter rise:
1 0 i 1 / 2 r RISE 10-1/2 INCH
3. Find radius:
Ç a RAD 16-11/16 INCH
4. Find arc angle:
a ARC 136.46°
5. Find arc length:
a ARC 39-3/4 INCH
6. Find segment area:
a a SEG 235.7767 SQ INCH
4065UG-E-B 6/9/04 1:49 PM Page 50