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Area & Perimeter Calculations
CALCULATING SQUARE AREAS
Example: You need to nd the oor area of a square closet with sides measuring 6 Feet 8 Inches.
KEY INPUT & DISPLAY
44.44444
SQ Feet
CALCULATING RECTANGULAR AREAS
Example: Find the oor area of a hallway measuring 10 Feet 6 Inched wide by 17 Feet 11 Inches long.
KEY INPUT & DISPLAY
10
Feet
6
Inch
188.125
SQ Feet
Remember to press to clear entries in between problems.
On/C On/C
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
LNTH 20
Feet
0
Inch
WDTH 25
Feet
0
Inch
HGHT 15
Feet
0
Inch
VOL 7500.
CU Feet
WALL 1350.
SQ Feet
ROOM 1850.
SQ Feet
Feet
5
2
0
Feet
2
0
Feet
2
Length
Width
Height
Height
Height
Height
51
Feet
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 nd the square-up and perimeter
values after solving for the area of the room.
KEY INPUT & DISPLAY
LNTH 22
Feet
5
Inch
WDTH 30
Feet
5
Inch
AREA 681.8403
SQ Feet
SQUP 37
Feet
9-7/16
Inch
PER 105
Feet
8
Inch
2 2 5
Inch
Length
Width
Feet
0 5
Inch
Feet
3
Width
Width
Width
%
Feet Inch
Conv
86
(x
2
)
Feet Inch
6
1
0
Feet Inch
7
×
1 1 1
=