Calculated Industries 8545 - Manual (Page 35)

Common Rafter
You have a rise of 6 feet 11 inches and
a run of 14 feet 6 inches. Find the com-
mon rafter length.
Steps Keystrokes Display
Reset [Conv] [x] 0.
calculator
1 — Find 1st side (a)
Enter rise
6 [Feet] 11 [Inch]
[Conv]
[ ] 47.84028
SQ FEET
Put in memory [M+]
M
47.84028
SQ FEET
2 — Find 2nd side (b)
Enter run
14 [Feet] 6 [Inch
[Conv] [ ]
M
210.25
SQ FEET
Put in memory [M+]
M
210.25
SQ FEET
Recall total [Rcl] [M+]
memory
M
258.0903
SQ FEET
3 — Solve for 3rd Side (c)
Find common rafter length
[ ]
M
16 0-13/16
FEET INCH
a
b
c
a 2 b 2 + = c 2
= c a 2 b 2 +
User’s Guide – 35