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Area & Perimeter Calculations
Remember to press
CALCULATING SQUARE AREAS
Example: You need to find the floor area of a square closet with sides measuring 6 Feet 8 Inches.
KEY INPUT & DISPLAY
6
8
Feet
Inch
CALCULATING RECTANGULAR AREAS
Example: Find the floor area of a hallway measuring 10 Feet 6 Inched wide by 17 Feet 11 Inches long.
KEY INPUT & DISPLAY
1
0
6
Feet
×
1
7
1
Feet
DETERMINE THE WALL AREA AND TOTAL SURFACE AREA
Example: A room mesures 20 Feet wide by 25 Feet long and 8 Feet high. The "Height" key on your
calculator has a mult-use function that, after calculating the volume of the room, can also be used to
determine the wall area and total surface area* of the room.
KEY INPUT & DISPLAY
2
2
0
0
Feet
Length
2
5
Feet
Feet
Width
1
5
Height
Feet
Height
Height
Height
DETERMINE THE SQUARE-UP AND PERIMETER
Example: You are working on a room measuring 22 Feet 5 Inches by 30 Feet 5 Inches. The "Width"
key on your calculator has a multi-use function that allows you to find the square-up and perimeter
values after solving for the area of the room.
KEY INPUT & DISPLAY
2
2
5
Feet
3
0
5
Feet
Width
Width
Width
to clear entries in between problems.
On/C
On/C
(x
)
2
Conv
%
Inch
=
1
Inch
Inch
Length
Inch
Width
Page 6
44.44444
SQ Feet
10
6
Feet
Inch
188.125
SQ Feet
LNTH 20
0
Feet
Inch
WDTH 25
0
Feet
Inch
HGHT 15
0
Feet
Inch
VOL 7500.
CU Feet
WALL 1350.
SQ Feet
ROOM 1850.
SQ Feet
LNTH 22
5
Feet
Inch
WDTH 30
5
Feet
Inch
AREA 681.8403
SQ Feet
SQUP 37
9-7/16
Feet
Inch
PER 105
8
Feet
Inch
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