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EXAMPLE PROBLEMS
Raked Wall Stud Lengths
Find the stud lengths in the raked wall with a peak of 7'5"
and length of 14' 8" (using the 16" default OC).
Operation: Reset
Enter:
CE/CLR CE/CLR
Display:
0.
Operation: Check OC Default
Enter:
Diag
RCL 2ND
Display:
OCTR 16 INCH
Operation: Enter Run
Enter:
Run
Feet
Inch
8
4
1
Display:
RUN 14 Ft - 8 INCH
Operation: Enter Rise
Enter:
Rise
Feet
Inch
7
5
Display:
RISE 7 Ft - 5 INCH
Operation: Find Length of Longest Stud
Enter:
Diag
2ND
Display:
RW1 6 Ft - 8 29/32 INCH
Operation: Find Length of Second Stud
Enter:
Diag
2ND
Display:
RW2 6 Ft - 13/16 INCH
Operation: Find Length of Third Stud
Enter:
Diag
2ND
Display:
RW3 5 Ft - 4 47/64 INCH
NOTE: Continue until you have last stud. To convert
result to /16th press
[2ND] [/16]
- 28 -
EXAMPLE PROBLEMS
Board Feet Lumber
Find the total cost for eight 2 inch x 4 inch x 12 foot piece
of lumber when the unit price is $1.60/Bd Ft.
Enter:
4
1
2
2ND
3
3
2
1
Answer:
8. B Ft
Then press:
8
3
5
Answer:
64. B Ft
Then press:
6
1
·
Cost
3
Answer:
$102.40
Remember: 1 board foot is 144 cubic inches or 0.08333
cubic foot of lumber, conversions can only be done to and
from other cubic measurements.
Circle Solutions
After entering the diameter of a circle, the Circle function is
used to find the circumference and area of a circle. After
finding the circumference of a circle, the area of the circle
may be found by entering
[7]
a second time. Entering
[7]
a
third time displays the circle diameter.
Circumference & Area
To find the circumference and the area of a circle whose
diameter is 10 inches.
- 29 -
EXAMPLE PROBLEMS
Enter
Display
Inch
7
1
0
2ND
DIA 10 INCH
7
CIRC 31 27/64 INCH
7
AREA 78.53982 SQ INCH
Arc Length
The Arc function is used to find the length of an arc. Note
that the circumference will display as soon as
[2ND] [7]
is
pressed, and will remain on the display until [
2ND] [4]
is
pressed. To find the arc length of an 85° arc whose diameter
is 5 inches.
Enter
Display
Inch
7
5
2ND
DIA 5 INCH
8
4
5
2ND
ARC 3 45/64 INCH
Simple Concrete Footings
Determine how much cement is needed to pour 5 concrete
footings that have an 8 inch diameter and are 12 inches
deep.
Enter Diameter by pressing
Inch
7
8
2ND
Find surface area by
continuing to press the
7
key twice.
Answer:
AREA 50.26548 SQ INCH
Then compute volume
by entering:
Inch
1
2
3
5
Answer:
603.1858 CU INCH
