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COMPLEX CONCRETE VOLUME
Example: You are pouring concrete for a patio with the dimensions shown below. Calculate the total
area (by dividing the patio into three rectangles) and determine cubic yards of concrete required,
assuming a depth of 4-1/2 Inches. Then, nd the total cost, if concrete costs $135 per Cubic Yard.
KEY INPUT & DISPLAY
0
1. Find area of Part “ A ” and store into Memory:
M+ 40.
SQ Feet
5
Feet
2. Find area of Part “ B ” and store into Memory:
40.
SQ Feet
600
SQ Feet
20
Feet
0
Inch
M+ 600
SQ Feet
M+ 704
SQ Feet
4. Find total area and clear Memory:
M+ 64.
SQ Feet
8
Feet
3. Find area of Part “ C ” and store into Memory:
64.
SQ Feet
9.777778
CU YD
5. Find total Cubic Yards:
M
M
M
M
M
M
M
M
$1320.
00
6. Find total cost:
On/C On/C
Feet
M+
×
2
3
0
Feet
=
Feet
5
×
Feet
M+
8
=
Feet
8
×
Feet
8
=
M+
Rcl Rcl
Inch
1 2
/
4
× =
0
Conv
5
×
0
(Cost)
31
20’
8’
8’
5’
8’
30’
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